Writing could be a torturous process for Douglas Adams, requiring a “general note to myself” to stop worrying about the bad bits and just press on. That note will be included in a book based on the abundant trove of unseen letters, scripts, jokes, poems, ideas, ID cards, and to-do notes in the archive left by Adams after his death in 2001. The crowdfunded book shines light on his best-known work, including Hitchhiker’s Guide to the Galaxy and Dirk Gently’s Holistic Detective Agency, as well as unrealized projects such as a dark theme park ride at Chessington World of Adventures.