Throughout this chapter, there have been a lot of things introduced that are not the primary focus but still added a great deal of understanding to the evolvement of domain-driven design. Being inspired by workarounds can really improve the general software development practices so there is further reading I would recommend. To further understand object orientation, and especially to find design patterns to use, I recommend the book called Gang of four, and Design Patterns : Elements of Reusable Object-Oriented Software, Erich Gamma, Richard Helm, Ralph Johnson, John Vlissides, Pearson Publishing. Even though the book is old, it still represents classic work on object orientation, and establishes a lot of terminology. Also Smalltalk Best Practice Patterns, Kent Becks, Prentice Hall, really embraces Object-Oriented design, and even though both books are naturally not focused on JavaScript, they can still be very helpful in advancing your design skills.

At the other end of the...