Here, on B.T.T. the discussion is about manuals,self help books and how-to books.
Now when I do buy a new piece of equipment for the home or garden I do read the instructions. If I don't I'm completely lost, I don't have a mechanical mind at all.
Manuals are another matter, I can't say I read any. However, a self help book on gardening is a favourite of mine and one which I return to often.