This document provides tips for improving PowerPoint presentations. It recommends using sans-serif fonts sized at 24 points, following the rule of six by limiting slides to six items or fewer, and adding impact with images. Sources are credited for any slides or photographs used under Creative Commons licensing.
10. Photograph Credits
Some rights reserved by shaire productions
https://www.flickr.com/photos/shaireproductions/6860002064/sizes/l/
Some rights reserved by TheTim
https://www.flickr.com/photos/thetim/2332947305/sizes/l/
Some rights reserved by rishibando
https://www.flickr.com/photos/rishibando/4044263737/sizes/o/
Some rights reserved by Stewf
https://www.flickr.com/photos/stewf/1068623779/sizes/l/
Some rights reserved by George E. Norkus
https://www.flickr.com/photos/87659272@N00/6891637956/sizes/l/
Some rights reserved by yuan2003
https://www.flickr.com/photos/yuan2003/1796359903/sizes/l/
Some rights reserved by the past tends to disappear
https://www.flickr.com/photos/daniandgeorge/6918076367/sizes/l/