Amazon.com description: Product Description: Once one has mastered the Rubik's Cube an irresistible urge persists that does not allow one to simply put it down. Don Taylor's "Cube Games" is an excellent avenue for the cubist who wants to persue further challenges and fun. The classic "checkerboard" pattern or "rotating center" may come easy for some; however, the two-sided checkerboard and the diagonal zig-zag patterns can be new and refreshing. Cube fans familiar with Don's original "Mastering Rubik's Cube" will find the same user-friendly descriptions and directions that canvas all of his cube guides. Get this book! Get your cube! Prepare to stay awake for a few more hours. - Tim Holt..