Every situation in this puzzle book is a difficult common table problem. The basic idea is simple. Pocket the 1 ball. Then, pocket the 2 ball. The layouts range from easy to very difficult. If you are a good billiards player, your success with these table layouts will prove that you are a serious competitor.
This book is available in US (amazon.com) and Europe (*.uk, *.fr, *.de, *.es, *.it).
Also see the author's Billiards Blog on the Billiard Gods web site.