Re: Publishing non-fiction book/feature article
I think you first need to answer the question of what is the genre you're really interested in. Is it more memoir type stuff or 'how to'? If you're strictly looking to monetize then my best estimate would be to write articles that are easy to put together in book form so you can derive income from each installment. The thing to remember is that even if the individual pieces draw from a whole you don't want the whole to become repetitive when it is compiled all together. In simple terms, it's code for the mind so write your functions so they can stand alone but avoid shooting yourself in the foot when you compile main().