Every memoir, every leadership book, every story drawn from real life runs into the same wall: the people in your story are real. Your ex-partner. Your difficult parent. The colleague who betrayed you. The mentor who changed your life. The client who became a friend. Writing about them is not optional — they are the story. But writing about them carelessly can create legal exposure, damage relationships that matter, and produce a book that feels like a score-settling exercise rather than a genuine piece of work. Here is everything I know, after thirty years, about how to do it right.