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DATA VISUALIZATION 101:
HOW TO DESIGN CHARTS
AND GRAPHS
TABLE OF
CONTENTS
INTRO
Bar Chart
Pie Chart
Line Chart
Area Chart
Scatter Plot
Bubble Chart
Heat Map
6
9
11
13
15
17
19
1
FINDING THE STORY IN
YOUR DATA
KNOW YOUR DATA
GUIDE TO CHART TYPES
10 DATA DESIGN
DO’S AND DONT’S
2
3
5
21
If your data is misrepresented or presented
ineffectively, key insights and understanding
are lost, which hurts both your message and
your reputation. The good news is that you
don’t need a PhD in statistics to crack the data
visualization code. This guide will walk you
through the most common charts and
visualizations, help you choose the right
presentation for your data, and give you
practical design tips and tricks to make sure
you avoid rookie mistakes. It’s everything you
need to help your data make a big impact.
What’s the ideal distance
between columns in a bar chart?
Your data is only as good as
your ability to understand and
communicate it, which is why
choosing the right visualization
is essential.
You’re about to find out.
1
FINDING THE STORY
IN YOUR DATA
Information can be visualized in a number of ways, each of which can
provide a specific insight. When you start to work with your data, it’s
important to identify and understand the story you are trying to tell and
the relationship you are looking to show. Knowing this information will
help you select the proper visualization to best deliver your message.
When analyzing data, search for patterns or interesting insights that can
be a good starting place for finding your story, such as:
TRENDS CORRELATIONS OUTLIERS
Example:
Ice cream sales
over time
Example:
Ice cream sales vs.
temperature
Example:
Ice cream sales in an
unusual region 2
CONTINUOUS
DISCRETE
CATEGORICAL
QUANTITATIVE
Before understanding visualizations, you
must understand the types of data that
can be visualized and their relationships
to each other. Here are some of the most
common you are likely to encounter.
Data that can be sorted according to group or
category. Example: Types of products sold.
Numerical data that has a finite number of
possible values. Example: Number of
employees in the office.
Data that is measured and has a value within a
range. Example: Rainfall in a year.
Data that can be counted or measured;
all values are numerical.
KNOW YOUR
DATA
DATA TYPES
3
PART-TO-WHOLE
RELATIONSHIPS
This shows a subset of data compared to the
larger whole. Example: Percentage of
customers purchasing specific products.
DISTRIBUTION
This shows data distribution, often around a
central value. Example: Heights of players on a
basketball team.
TIME-SERIES
This tracks changes in values of a consistent
metric over time. Example: Monthly sales.
RANKING
This shows how two or more values compare
to each other in relative magnitude. Example:
Historic weather patterns, ranked from the
hottest months to the coldest.
DEVIATION
This examines how data points relate to each
other, particularly how far any given data point
differs from the mean. Example: Amusement
park tickets sold on a rainy day vs. a regular day.
CORRELATION
This is data with two or more variables that may
demonstrate a positive or negative correlation
to each other. Example: Salaries according to
education level.
Now that you’ve got a handle on the most common data
types and relationships you’ll most likely have to work
with, let’s dive into the different ways you can visualize
that data to get your point across.
NOMINAL COMPARISON
This is a simple comparison of the quantitative
values of subcategories. Example: Number of
visitors to various websites.
DATA RELATIONSHIPS
4
GUIDE TO
CHART TYPES
In this section, we’ll cover the uses, variations,
and best practices for some of the most common
data visualizations:
BAR CHART
PIE CHART
LINE CHART
AREA CHART
SCATTER PLOT
BUBBLE CHART
HEAT MAP
5
CONTENT PUBLISHED, BY CATEGORY
VARIATIONS OF BAR CHARTS
Bar charts are very versatile. They are best used
to show change over time, compare different
categories, or compare parts of a whole.
BAR CHART
VERTICAL
(COLUMN CHART)
Best used for chronological data (time-series
should always run left to right), or when
visualizing negative values below the x-axis.
6
HORIZONTAL
Best used for data with long category labels.
PAGE VIEWS, BY MONTH
100% STACKED
Best used when the total value of each category
is unimportant and percentage distribution of
subcategories is the primary message.
VARIATIONS OF BAR CHARTS (CONT.)
BAR CHART
7
STACKED
Best used when there is a need to compare
multiple part-to-whole relationships. These can
use discrete or continuous data, oriented either
vertically or horizontally.
MONTHLY TRAFFIC, BY SOURCE PERCENTAGE OF CONTENT PUBLISHED, BY
MONTH
DESIGN BEST PRACTICES
START THE Y-AXIS VALUE AT 0
Starting at a value above zero truncates the bars
and doesn’t accurately reflect the full value.
USE HORIZONTAL LABELS
Avoid steep diagonal or vertical type, as it can
be difficult to read.
ORDER DATA APPROPRIATELY
Order categories alphabetically, sequentially, or
by value.
SPACE BARS APPROPRIATELY
Space between bars should be ½ bar width.
USE CONSISTENT COLORS
Use one color for bar charts. You may use an
accent color to highlight a significant data point.
BAR CHART
8
VARIATIONS OF PIE CHARTS
THE CASE AGAINST
THE PIE CHART
Pie charts are best used for making part-to-whole
comparisons with discrete or continuous data. They
are most impactful with a small data set.
The pie chart is one of the most popular
chart types. However, some critics, such
as data visualization expert Stephen Few,
are not fans. They argue that we are really
only able to gauge the size of pie slices
if they are in familiar percentages (25%,
50%, 75%, 100%) and positions, because
they are common angles. We interpret
other angles inconsistently, making it
difficult to compare relative sizes and
therefore less effective.
STANDARD
Used to show part-to-whole relationships.
DONUT
Stylistic variation that enables the inclusion of a
total value or design element in the center.
PIE CHART
9
DESIGN BEST PRACTICES
VISUALIZE NO MORE THAN
5 CATEGORIES PER CHART
It is difficult to differentiate between small
values; depicting too many slices decreases the
impact of the visualization. If needed, you can
group smaller values into an “other” or
“miscellaneous” category, but make sure it does
not hide interesting or significant information.
DON’T USE MULTIPLE PIE CHARTS
FOR COMPARISON
Slice sizes are very difficult to compare
side-by-side. Use a stacked bar chart instead.
ORDER SLICES
CORRECTLY
There are two ways to
order sections, both
of which are meant to
aid comprehension:
OPTION 1
Place the largest section at
12 o’clock, going clockwise.
Place the second largest
section at 12 o’clock,
going counterclockwise. The
remaining sections can be
placed below, continuing
counterclockwise.
OPTION 2
Start the largest section at
12 o’clock, going clockwise.
Place remaining sections in
descending order, going
clockwise.
MAKE SURE ALL DATA ADDS UP TO 100%
Verify that values total 100% and that pie slices
are sized proportionate to their corresponding
value.
PIE CHART
10
1
5
4
3
2 1
2
3
4
5
Line charts are used to show time-series relationships
with continuous data. They help show trend, acceleration,
deceleration, and volatility.
LINE CHART
11
DON’T PLOT MORE THAN 4 LINES
If you need to display more, break them out into
separate charts for better comparison.
USE SOLID LINES ONLY
Dashed and dotted lines can be distracting.
USE THE RIGHT HEIGHT
Plot all data points so that the line chart
takes up approximately two-thirds of the y-axis’
total scale.
INCLUDE A ZERO BASELINE IF POSSIBLE
Although a line chart does not have to start at a
zero baseline, it should be included if possible.
If relatively small fluctuations in data are
meaningful (e.g., in stock market data), you may
truncate the scale to showcase these variances.
LABEL THE LINES DIRECTLY
This lets readers quickly identify lines and
corresponding labels instead of referencing
a legend.
LINE CHART
DESIGN BEST PRACTICES
12
AREA CHART STACKED AREA 100% STACKED AREA
Area charts depict a time-series relationship, but they are
different than line charts in that they can represent volume.
Best used to show or compare a quantitative
progression over time.
Best used to visualize part-to-whole
relationships, helping show how each
category contributes to the cumulative total.
Best used to show distribution of categories as
part of a whole, where the cumulative total is
unimportant.
AREA CHART
VARIATIONS OF AREA CHARTS
13
DON’T DISPLAY MORE THAN
4 DATA CATEGORIES
Too many will result in a cluttered visual that is
difficult to decipher.
MAKE IT EASY TO READ
In stacked area charts, arrange data to position
categories with highly variable data on the top
of the chart and low variability on the bottom.
START Y-AXIS VALUE AT 0
Starting the axis above zero truncates the
visualization of values.
USE TRANSPARENT COLORS
In standard area charts, ensure data isn’t
obscured in the background by ordering
thoughtfully and using transparency.
DON’T USE AREA CHARTS TO
DISPLAY DISCRETE DATA
The connected lines imply intermediate values,
which only exist with continuous data.
AREA CHART
DESIGN BEST PRACTICES
14
Scatter plots show the relationship between items
based on two sets of variables. They are best used to
show correlation in a large amount of data.
SCATTER PLOT
15
START Y-AXIS VALUE AT 0
Starting the axis above zero truncates the
visualization of values.
USE TREND LINES
These help draw correlation between the
variables to show trends.
DON’T COMPARE MORE THAN
2 TREND LINES
Too many lines make data difficult to interpret.
INCLUDE MORE VARIABLES
Use size and dot color to encode additional
data variables.
SCATTER PLOT
DESIGN BEST PRACTICES
16
BUBBLE PLOT BUBBLE MAP
Bubble charts are good for displaying nominal
comparisons or ranking relationships.
This is a scatter plot with bubbles, best used to
display an additional variable.
Best used for visualizing values for specific
geographic regions.
BUBBLE CHART
VARIATIONS OF
BUBBLE CHARTS
17
SIZE BUBBLES APPROPRIATELY DON’T USE ODD SHAPESMAKE SURE LABELS ARE VISIBLE
Bubbles should be scaled according to area,
not diameter.
Avoid adding too much detail or using shapes
that are not entirely circular; this can lead to
inaccuracies.
All labels should be unobstructed and easily
identified with the corresponding bubble.
DESIGN BEST PRACTICES
BUBBLE CHART
18
Heat maps display categorical data, using intensity
of color to represent values of geographic areas or
data tables.
HEAT MAP
19
USE A SIMPLE MAP OUTLINE SELECT COLORS APPROPRIATELY
USE PATTERNS SPARINGLY CHOOSE APPROPRIATE DATA RANGES
These lines are meant to frame the data, not
distract.
Some colors stand out more than others, giving
unnecessary weight to that data. Instead, use a
single color with varying shade or a spectrum
between two analogous colors to show
intensity. Also remember to intuitively code
color intensity according to values.
A pattern overlay that indicates a second
variable is acceptable, but using multiple is
overwhelming and distracting.
Select 3-5 numerical ranges that enable fairly
even distribution of data between them. Use +/-
signs to extend high and low ranges.
DESIGN BEST PRACTICES
FL
TX
NM
AZ
AK
CA
NV
UT
CO
OR
WA
ID
HI
OK
MT
WY
ND
SD
NE
KS
MN
IA
MO
AR
LA
MS AL GA
SC
IL
WI
MI
IN
OH
TN
KY
NC
WV VA
PA
NY
ME
VT NH
RI
CT
NJ
DE
MD
MA
DC
HEAT MAP
20
1 | DO USE ONE COLOR TO
REPRESENT EACH CATEGORY.
2 | DO ORDER DATA SETS USING
LOGICAL HEIRARCHY.
3 | DO USE CALLOUTS TO
HIGHLIGHT IMPORTANT OR
INTERESTING INFORMATION.
4 | DO VISUALIZE DATA IN A WAY
THAT IS EASY FOR READERS TO
COMPARE VALUES.
5 | DO USE ICONS TO ENHANCE
COMPREHENSION AND REDUCE
UNNECESSARY LABELING.
6 | DON’T USE HIGH CONTRAST
COLOR COMBINATIONS SUCH AS
RED/GREEN OR BLUE/YELLOW.
7 | DON’T USE 3D CHARTS. THEY
CAN SKEW PERCEPTION OF THE
VISUALIZATION.
8 | DON’T ADD CHART JUNK.
UNNECESSARY ILLUSTRATIONS,
DROP SHADOWS, OR
ORNAMENTATIONS DISTRACT
FROM THE DATA.
9 | DON’T USE MORE THAN 6
COLORS IN A SINGLE LAYOUT.
10 | DON’T USE DISTRACTING
FONTS OR ELEMENTS (SUCH AS
BOLD, ITALIC, OR UNDERLINED
TEXT).
Designing your data doesn’t have to be
overwhelming. With a basic understanding of
how different data sets should be visualized,
along with a few fundamental design tips and
best practices, you can create more accurate,
more effective data visualizations. Follow these
10 tips to ensure your design does your data
justice.
10 DATA DESIGN
DOS AND
DON’TS
21
HELP HUBSPOT IMPROVE BY
RATING OUR CONTENT.
HubSpot is the world’s leading inbound marketing and sales platform. Over 10,000 customers in
65 countries use HubSpot’s award-winning software, services, and support to create an inbound
experience that will attract, engage, and delight customers. To find out how HubSpot can grow
your business, watch this video overview, get a demo, or schedule a free inbound marketing
assessment with one of our consultants.
SOURCES: Infographics: The Power of Visual Storytelling by Ross Crooks, Jason Lankow and Josh Ritchie (Wiley 2012); The Wall Street Journal Guide to Information
Graphics by Dona Wong (Dow Jones & Company 2010); Visualize This by Nathan Yau (Wiley 2011)
Visage was created because we believe that good design should be available to everyone, not
just organizations that can afford design agency premiums. Our unique web-based software
enables non-designers to create beautiful, on-brand data visualizations and visual
content. Learn more and schedule a demo at visage.co.
A COLLABORATION BETWEEN:
ALL CHARTS AND GRAPHS THAT APPEAR IN THIS BOOK WERE CREATED WITH VISAGE.

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Data visualization 101_how_to_design_charts_and_graphs

  • 1. + DATA VISUALIZATION 101: HOW TO DESIGN CHARTS AND GRAPHS
  • 2. TABLE OF CONTENTS INTRO Bar Chart Pie Chart Line Chart Area Chart Scatter Plot Bubble Chart Heat Map 6 9 11 13 15 17 19 1 FINDING THE STORY IN YOUR DATA KNOW YOUR DATA GUIDE TO CHART TYPES 10 DATA DESIGN DO’S AND DONT’S 2 3 5 21
  • 3. If your data is misrepresented or presented ineffectively, key insights and understanding are lost, which hurts both your message and your reputation. The good news is that you don’t need a PhD in statistics to crack the data visualization code. This guide will walk you through the most common charts and visualizations, help you choose the right presentation for your data, and give you practical design tips and tricks to make sure you avoid rookie mistakes. It’s everything you need to help your data make a big impact. What’s the ideal distance between columns in a bar chart? Your data is only as good as your ability to understand and communicate it, which is why choosing the right visualization is essential. You’re about to find out. 1
  • 4. FINDING THE STORY IN YOUR DATA Information can be visualized in a number of ways, each of which can provide a specific insight. When you start to work with your data, it’s important to identify and understand the story you are trying to tell and the relationship you are looking to show. Knowing this information will help you select the proper visualization to best deliver your message. When analyzing data, search for patterns or interesting insights that can be a good starting place for finding your story, such as: TRENDS CORRELATIONS OUTLIERS Example: Ice cream sales over time Example: Ice cream sales vs. temperature Example: Ice cream sales in an unusual region 2
  • 5. CONTINUOUS DISCRETE CATEGORICAL QUANTITATIVE Before understanding visualizations, you must understand the types of data that can be visualized and their relationships to each other. Here are some of the most common you are likely to encounter. Data that can be sorted according to group or category. Example: Types of products sold. Numerical data that has a finite number of possible values. Example: Number of employees in the office. Data that is measured and has a value within a range. Example: Rainfall in a year. Data that can be counted or measured; all values are numerical. KNOW YOUR DATA DATA TYPES 3
  • 6. PART-TO-WHOLE RELATIONSHIPS This shows a subset of data compared to the larger whole. Example: Percentage of customers purchasing specific products. DISTRIBUTION This shows data distribution, often around a central value. Example: Heights of players on a basketball team. TIME-SERIES This tracks changes in values of a consistent metric over time. Example: Monthly sales. RANKING This shows how two or more values compare to each other in relative magnitude. Example: Historic weather patterns, ranked from the hottest months to the coldest. DEVIATION This examines how data points relate to each other, particularly how far any given data point differs from the mean. Example: Amusement park tickets sold on a rainy day vs. a regular day. CORRELATION This is data with two or more variables that may demonstrate a positive or negative correlation to each other. Example: Salaries according to education level. Now that you’ve got a handle on the most common data types and relationships you’ll most likely have to work with, let’s dive into the different ways you can visualize that data to get your point across. NOMINAL COMPARISON This is a simple comparison of the quantitative values of subcategories. Example: Number of visitors to various websites. DATA RELATIONSHIPS 4
  • 7. GUIDE TO CHART TYPES In this section, we’ll cover the uses, variations, and best practices for some of the most common data visualizations: BAR CHART PIE CHART LINE CHART AREA CHART SCATTER PLOT BUBBLE CHART HEAT MAP 5
  • 8. CONTENT PUBLISHED, BY CATEGORY VARIATIONS OF BAR CHARTS Bar charts are very versatile. They are best used to show change over time, compare different categories, or compare parts of a whole. BAR CHART VERTICAL (COLUMN CHART) Best used for chronological data (time-series should always run left to right), or when visualizing negative values below the x-axis. 6 HORIZONTAL Best used for data with long category labels. PAGE VIEWS, BY MONTH
  • 9. 100% STACKED Best used when the total value of each category is unimportant and percentage distribution of subcategories is the primary message. VARIATIONS OF BAR CHARTS (CONT.) BAR CHART 7 STACKED Best used when there is a need to compare multiple part-to-whole relationships. These can use discrete or continuous data, oriented either vertically or horizontally. MONTHLY TRAFFIC, BY SOURCE PERCENTAGE OF CONTENT PUBLISHED, BY MONTH
  • 10. DESIGN BEST PRACTICES START THE Y-AXIS VALUE AT 0 Starting at a value above zero truncates the bars and doesn’t accurately reflect the full value. USE HORIZONTAL LABELS Avoid steep diagonal or vertical type, as it can be difficult to read. ORDER DATA APPROPRIATELY Order categories alphabetically, sequentially, or by value. SPACE BARS APPROPRIATELY Space between bars should be ½ bar width. USE CONSISTENT COLORS Use one color for bar charts. You may use an accent color to highlight a significant data point. BAR CHART 8
  • 11. VARIATIONS OF PIE CHARTS THE CASE AGAINST THE PIE CHART Pie charts are best used for making part-to-whole comparisons with discrete or continuous data. They are most impactful with a small data set. The pie chart is one of the most popular chart types. However, some critics, such as data visualization expert Stephen Few, are not fans. They argue that we are really only able to gauge the size of pie slices if they are in familiar percentages (25%, 50%, 75%, 100%) and positions, because they are common angles. We interpret other angles inconsistently, making it difficult to compare relative sizes and therefore less effective. STANDARD Used to show part-to-whole relationships. DONUT Stylistic variation that enables the inclusion of a total value or design element in the center. PIE CHART 9
  • 12. DESIGN BEST PRACTICES VISUALIZE NO MORE THAN 5 CATEGORIES PER CHART It is difficult to differentiate between small values; depicting too many slices decreases the impact of the visualization. If needed, you can group smaller values into an “other” or “miscellaneous” category, but make sure it does not hide interesting or significant information. DON’T USE MULTIPLE PIE CHARTS FOR COMPARISON Slice sizes are very difficult to compare side-by-side. Use a stacked bar chart instead. ORDER SLICES CORRECTLY There are two ways to order sections, both of which are meant to aid comprehension: OPTION 1 Place the largest section at 12 o’clock, going clockwise. Place the second largest section at 12 o’clock, going counterclockwise. The remaining sections can be placed below, continuing counterclockwise. OPTION 2 Start the largest section at 12 o’clock, going clockwise. Place remaining sections in descending order, going clockwise. MAKE SURE ALL DATA ADDS UP TO 100% Verify that values total 100% and that pie slices are sized proportionate to their corresponding value. PIE CHART 10 1 5 4 3 2 1 2 3 4 5
  • 13. Line charts are used to show time-series relationships with continuous data. They help show trend, acceleration, deceleration, and volatility. LINE CHART 11
  • 14. DON’T PLOT MORE THAN 4 LINES If you need to display more, break them out into separate charts for better comparison. USE SOLID LINES ONLY Dashed and dotted lines can be distracting. USE THE RIGHT HEIGHT Plot all data points so that the line chart takes up approximately two-thirds of the y-axis’ total scale. INCLUDE A ZERO BASELINE IF POSSIBLE Although a line chart does not have to start at a zero baseline, it should be included if possible. If relatively small fluctuations in data are meaningful (e.g., in stock market data), you may truncate the scale to showcase these variances. LABEL THE LINES DIRECTLY This lets readers quickly identify lines and corresponding labels instead of referencing a legend. LINE CHART DESIGN BEST PRACTICES 12
  • 15. AREA CHART STACKED AREA 100% STACKED AREA Area charts depict a time-series relationship, but they are different than line charts in that they can represent volume. Best used to show or compare a quantitative progression over time. Best used to visualize part-to-whole relationships, helping show how each category contributes to the cumulative total. Best used to show distribution of categories as part of a whole, where the cumulative total is unimportant. AREA CHART VARIATIONS OF AREA CHARTS 13
  • 16. DON’T DISPLAY MORE THAN 4 DATA CATEGORIES Too many will result in a cluttered visual that is difficult to decipher. MAKE IT EASY TO READ In stacked area charts, arrange data to position categories with highly variable data on the top of the chart and low variability on the bottom. START Y-AXIS VALUE AT 0 Starting the axis above zero truncates the visualization of values. USE TRANSPARENT COLORS In standard area charts, ensure data isn’t obscured in the background by ordering thoughtfully and using transparency. DON’T USE AREA CHARTS TO DISPLAY DISCRETE DATA The connected lines imply intermediate values, which only exist with continuous data. AREA CHART DESIGN BEST PRACTICES 14
  • 17. Scatter plots show the relationship between items based on two sets of variables. They are best used to show correlation in a large amount of data. SCATTER PLOT 15
  • 18. START Y-AXIS VALUE AT 0 Starting the axis above zero truncates the visualization of values. USE TREND LINES These help draw correlation between the variables to show trends. DON’T COMPARE MORE THAN 2 TREND LINES Too many lines make data difficult to interpret. INCLUDE MORE VARIABLES Use size and dot color to encode additional data variables. SCATTER PLOT DESIGN BEST PRACTICES 16
  • 19. BUBBLE PLOT BUBBLE MAP Bubble charts are good for displaying nominal comparisons or ranking relationships. This is a scatter plot with bubbles, best used to display an additional variable. Best used for visualizing values for specific geographic regions. BUBBLE CHART VARIATIONS OF BUBBLE CHARTS 17
  • 20. SIZE BUBBLES APPROPRIATELY DON’T USE ODD SHAPESMAKE SURE LABELS ARE VISIBLE Bubbles should be scaled according to area, not diameter. Avoid adding too much detail or using shapes that are not entirely circular; this can lead to inaccuracies. All labels should be unobstructed and easily identified with the corresponding bubble. DESIGN BEST PRACTICES BUBBLE CHART 18
  • 21. Heat maps display categorical data, using intensity of color to represent values of geographic areas or data tables. HEAT MAP 19
  • 22. USE A SIMPLE MAP OUTLINE SELECT COLORS APPROPRIATELY USE PATTERNS SPARINGLY CHOOSE APPROPRIATE DATA RANGES These lines are meant to frame the data, not distract. Some colors stand out more than others, giving unnecessary weight to that data. Instead, use a single color with varying shade or a spectrum between two analogous colors to show intensity. Also remember to intuitively code color intensity according to values. A pattern overlay that indicates a second variable is acceptable, but using multiple is overwhelming and distracting. Select 3-5 numerical ranges that enable fairly even distribution of data between them. Use +/- signs to extend high and low ranges. DESIGN BEST PRACTICES FL TX NM AZ AK CA NV UT CO OR WA ID HI OK MT WY ND SD NE KS MN IA MO AR LA MS AL GA SC IL WI MI IN OH TN KY NC WV VA PA NY ME VT NH RI CT NJ DE MD MA DC HEAT MAP 20
  • 23. 1 | DO USE ONE COLOR TO REPRESENT EACH CATEGORY. 2 | DO ORDER DATA SETS USING LOGICAL HEIRARCHY. 3 | DO USE CALLOUTS TO HIGHLIGHT IMPORTANT OR INTERESTING INFORMATION. 4 | DO VISUALIZE DATA IN A WAY THAT IS EASY FOR READERS TO COMPARE VALUES. 5 | DO USE ICONS TO ENHANCE COMPREHENSION AND REDUCE UNNECESSARY LABELING. 6 | DON’T USE HIGH CONTRAST COLOR COMBINATIONS SUCH AS RED/GREEN OR BLUE/YELLOW. 7 | DON’T USE 3D CHARTS. THEY CAN SKEW PERCEPTION OF THE VISUALIZATION. 8 | DON’T ADD CHART JUNK. UNNECESSARY ILLUSTRATIONS, DROP SHADOWS, OR ORNAMENTATIONS DISTRACT FROM THE DATA. 9 | DON’T USE MORE THAN 6 COLORS IN A SINGLE LAYOUT. 10 | DON’T USE DISTRACTING FONTS OR ELEMENTS (SUCH AS BOLD, ITALIC, OR UNDERLINED TEXT). Designing your data doesn’t have to be overwhelming. With a basic understanding of how different data sets should be visualized, along with a few fundamental design tips and best practices, you can create more accurate, more effective data visualizations. Follow these 10 tips to ensure your design does your data justice. 10 DATA DESIGN DOS AND DON’TS 21
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  • 25. HubSpot is the world’s leading inbound marketing and sales platform. Over 10,000 customers in 65 countries use HubSpot’s award-winning software, services, and support to create an inbound experience that will attract, engage, and delight customers. To find out how HubSpot can grow your business, watch this video overview, get a demo, or schedule a free inbound marketing assessment with one of our consultants. SOURCES: Infographics: The Power of Visual Storytelling by Ross Crooks, Jason Lankow and Josh Ritchie (Wiley 2012); The Wall Street Journal Guide to Information Graphics by Dona Wong (Dow Jones & Company 2010); Visualize This by Nathan Yau (Wiley 2011) Visage was created because we believe that good design should be available to everyone, not just organizations that can afford design agency premiums. Our unique web-based software enables non-designers to create beautiful, on-brand data visualizations and visual content. Learn more and schedule a demo at visage.co. A COLLABORATION BETWEEN: ALL CHARTS AND GRAPHS THAT APPEAR IN THIS BOOK WERE CREATED WITH VISAGE.