From this month I've decided to see if I can work on my personal projects full time... these include the books I've self-published through http://datacrayon.com

From this month I've decided to see if I can work on my personal projects full time... these include the books I've self-published through http://datacrayon.com/shop/ http://datacrayon.com/shop/, but now I wonder if it's worth while getting any of them into print...