I have my own unique systems for playing Pick 3 and Pick 4 games. After seeing what is available from several authors, I think that I should get my books out there in the market place to compete. I have a more systems than just Pick 3 and Pick 4, although I am unsure how well I could present them for manual use without a computer program. Is there any interest in material like that? Given what I am seeing in the market place, it seems likely that there is a niche, at least for more systems.