I love the fantastic book Domain Driven Design written by Eric Evans too. Glad to see it is on DHH's top 5 as well. The concepts of that book (Entity, Value Object, Repository, Aggregate, Aggregate Root) have helped me a lot developing well written software.<p>I still don't get it why I've seen so few Node.js applications using Application Service layers, Domain Models and Repositories, and instead clog their MVC containers with calls to whatever datastore directly, with no Domain Model at all.