This topic is about coding studies: a specific coding practice exercise. First you'll learn how to do them, then see some coding studies in action.
Structure and internals of Ruby on Rails. Learn how to peek under the covers of your framework.
Writing software is a practical, experience-based skill like playing tennis, riding a bike or playing music. You get better by practicing. Like those other skills, it matters how you practice. This topic is all about how to practice and improve at writing software.