An interactive conversation / tutorial session beats a book pretty much all of the time. Nonfiction books contain a lot of information that's redundant to a reader familiar with the topic, and not enough for someone new. They don't backtrack if you clearly missed an important point. And so on. It's like fractal geometry.
If an AI agent understands you (and book writing, and the topic of the book) well enough then it should be able to write you a pretty nice bespoke book.
I do suspect that interactive media is just strictly better in theory. But maybe there will be a period of time where bespoke AI-generated books make sense.
The problem is a whole book worth is a long time to go between feedback and questions. I don't see how the agent would know the reader that well, knowledge is embedded in the brain and only comes out when prompted.
