• Evans, E. (2003). Domain-Driven Design: Tackling Complexity in the Heart of Soft‐ ware. Boston: Addison-Wesley.

Eric Evans’s original book that introduced the domain-driven design methodol‐ ogy. Although it doesn’t reflect newer aspects of DDD such as domain events and event sourcing, it’s still essential reading for becoming a DDD black belt.

• Martraire, C. (2019). Living Documentation: Continuous Knowledge Sharing by Design. Boston: Addison-Wesley.

In this book, Cyrille Martraire proposes a domain-driven design–based approach to knowledge sharing, documentation, and testing.

• Vernon, V. (2013). Implementing Domain-Driven Design. Boston: Addison- Wesley.

Another timeless DDD classic. Vaughn Vernon provides in-depth discussion and detailed examples of domain-driven design thinking and the use of its strategic and tactical toolset. As a learning foundation, Vaughn uses a real-world example of failing initiatives with DDD and the teams’ rejuvenated journey afforded by applying essential course corrections.

• Young, G. (2017). Versioning in an Event Sourced System. Leanpub.

In Chapter 7, we discussed that it can be challenging to evolve an event-sourced system. This book is dedicated to this topic.