This document summarizes chapters 8-13 of the book Domain Driven Design: Refactoring Toward Deeper Insight. It discusses making implicit domain concepts explicit in the model, applying analysis patterns to better understand the domain, relating design patterns to the conceptual domain model, and refactoring the model for deeper insight into the domain. The overall aim is to build up the domain model through an iterative process of discovery to truly capture the structure and concepts of the problem domain.