I’ll talk about how the approach to writing changes when a generative AI becomes your co-author. I’ll share my personal experience of writing a book about generative AI — with its help — including ethical dilemmas, cognitive challenges, and unexpected insights. I’ll explain why the process took ten times longer but brought a hundred times more experience. I’ll also show how I worked with terminology and how, in parallel, I developed practical recommendations for using generative AI in programming, education, and other fields.