Ruby on Rails Crash Course is a path learning Ruby On Rails. In this course we learn basic ruby language. Installation ruby using RVM. How we use ruby variable, constants, and arguments. Learning about core Ruby feature, Blocks. Everything in Ruby is an object. We have to learn about Basic Object Oriented Programming : Inheritance, Polymorphism, and Encapsulation. And in the end of this course, we learn to make our own GEM for auto_3000 (Car Rental).