What do you do when the technical book you write contains advice you do not agree with anymore? What do you do if a book you write receives mixed reviews? Writing a technical book is a long process and involves many different stakeholders. This talk dives into the technical book writing process, how I came to write a book, sales figures, and discusses some of the bad advice given by the author (me!). If you are interested in writing a technical book, or just wish to see somebody admit they were wrong in front of an audience, this is the talk for you.