Not like in a medical "I've swallowed a book" sense, but in the sense of actually writing one? If you put all your knowledge about a subject, say Bushcraft, on paper would it be enjoyable and fun to read?
I think I could write a book, but not about Bushcraft, maybe some travel related thing though. I rode John O'Groats to Lands End a year or two ago and made lots of notes, maybe I need to write them up.
What about you lot?