I have kept this book since I purchased it. It's a thick book, over 3 centimeters, but the text inside is large and easy to read. It's about the truth of the universe. "Transformation" I & II Author: PRAU. CAUMIYULUAAHANP Publisher: First Pier Light Reference: Ikuo Adachi, "The Law of Waves" Published by Natural Spirit Co., Ltd. (2007) The spine is yellowed. The cover has some scratches, marks, and creases. Thank you.