I agree, I too like to read authored books. But there are certain topics, especially the new ones doesn't have good books yet. My post was to show that you can create books based on your interest, in a way that you like w.r.t to the content/tone/layout etc. It's a new idea made possible by LLM's. It might become the norm in few years I believe, where each one will be having a personlized library of books that they curate. So the point was to persuade the parent commentator that some books are better created this way.