Part II. Creating Code
In this part . . .
You can go a long way in Ruby on Rails with very little coding. For example you can create a complete Web application by typing less than 200 characters. (Yes, I've counted the characters.)
But to understand how an application works or to customize an application, you need to know some Ruby programming. You must also understand how to use HTML tags to compose Web pages. This part of the book describes all that stuff.