The index is an unglamorous feature that matches the book’s practical spine. It lets you treat the material as a toolkit instead of a one-time read.
You don’t always need the whole philosophy. Sometimes you need the quickest path to a specific move: mirroring, labeling, calibrated questions, execution checks, or the search for hidden leverage. An index makes the book usable in the moment—before a salary conversation, a vendor call, or a difficult personal talk—when you don’t have time to reread chapters.
It also reveals how connected the ideas are. The same skills appear under different headings because they work together: tone supports questions, questions uncover emotions, emotions unlock movement, and movement creates deals that hold.
In a sense, the index is the book’s quiet promise kept: not inspiration, but repeatable action.