This is a delightful little book. If you have any interest in Geometry, Maths, Designs, Shapes, Tile patterns, Puzzles etc. then your reading destination should be the Sacred Geometry (Wooden Books). Surprisingly, you can grasp most of this book knowing high school maths while at the same time those with more maths knowledge will also enjoy it as well.
I guess it falls right in the realm of Mathematical recreations. I am amazed that the author has put together a beautifully written book, including 168 drawings, figures and diagrams and on top of that shows how most are constructed. All this has been accomplished in 64 pages including an introduction.
Sounds like a one must-have book on mathematical and rational puzzles, get Sacred Geometry (Wooden Books) directly from Amazon.