Derren Brown's first book for magicians in 20 years. 520 pages on performance theory, the process of creating his theatrical shows, and on-stage technique. This touring journal, written by one of the most successful West End performers alive, came into being while Derren performed his sell-out tour of Showman around the UK in 2022/3. It is written for magicians and mentalists looking to put on a show, and looks in detail at show-writing and performance, as well as questions of material, character, script, spectator handling and more. Mentalism, meaning and thirty years of mistakes.