Sourced material for the book is to be used thoughtfully. This phase involves reading, reflecting, and synthesising, guiding writers to integrate collected material into their books. Given that this process differs from what is commonly found in articles or theses, specific techniques can be tailored for application in research-based nonfiction. This chapter shows how to accomplish this effectively and efficiently without much time loss. It outlines easily adaptable methods for reading, reflecting, synthesising and developing ideas that can enhance the content of your book. The emphasis of the chapter is on working smarter through this phase—reading quickly, selecting usable parts from the collected material and integrating them into the book. It’s also important to know where to incorporate the material from other sources in the book.