With Kindle Unlimited ($9.99/month) at Amazon.com, you can read all e-books from Schottenbauer Publishing for no extra charge! Amazon offers Free 30 Day Trials of Kindle Unlimited. With this deal, trial members can read all Schottenbauer Publishing e-books free! This includes all the e-book puzzles, Alphabets of the World, The World in a Graph, all the geometry workbooks, the books on Bow Science & Exercises, and the educational novels by M. Schottenbauer, Ph.D. Currently, Kindle Unlimited is available in the USA and UK, with expansion to other countries expected soon.