Millet and Tune are some of the forerunners in the field of Domain-Driven Design, an architectural approach that aims to further allign business concepts and their technical implementation. The authors focus on the core concepts of a domain-driven system development approach, and offer practical advice to the reader on how to apply the principles and ideas in their daily endeavours. As the book dives deep into advanced concepts, it is advisable to pick this up later in your journey, after you have gained experience working on real systems.