At last years Chess Olympiad, I picked up a small book on World Champions, written by Meszaros Andras. The book itself was pretty simply, in that it each chapter consisted of (a) a picture of the world champion featured (b) 2 example games with very light symbolic annotations and (c) 16 tactics puzzles from each champion.
I suspect the book was self published, as I purchased my copy from the author himself (and he even signed it). And although books are on the way out (even in chess) books of this type are probably easy enough to produce and distribute to interested buyers (such as myself). All you probably need is an interesting, but original topic (e.g. top Australian players, or World Junior Champions etc)