udooz (1) [Avatar] Offline
This chapter is the base for whole. Each principles have been explained with different example (Ticket, Invoice - Customer, Book - ShoppingCart). I suggested to have one single example (Invoice - Customer) and its iteration (refactoring) would help lot to fit into these principles.
aslam.khan (50) [Avatar] Offline
Re: Chapter 2: Single example classes will give more clarity.

Thanks for the feedback. I will add that idea to the backlog and see if it will enhance the chapter.

Please continue giving suggestions and feedback.