The Enigmatic Hexahedron: How to Solve It [Rubik's Cube] This book was published in 1981. It's quite an old book, and when I opened it to take photos, the glue came loose. I apologize. This affects pages 48 and 49. It shouldn't affect readability, but there's a possibility it could come apart further. Please refrain from purchasing if you are concerned. As shown in photos 6 and 7, there appears to be a Rubik's Cubist certification. The names of those certified are listed, totaling 1277 as of January 1981. This book is from over 44 years ago, when the Rubik's Cube was incredibly popular. For those who submitted their names, it might be interesting to take a look. There is some yellowing and staining. Please check the photos. If you purchase this with other books, I can offer a discount on shipping if they can be shipped together. Please consider this. Thank you. A practical guide explaining how to solve the Rubik's Cube. - Title: The Enigmatic Hexahedron: How to Solve It - Publisher: Dynamic Sellers - Price: 650 yen - Contents: A book about how to solve the Rubik's Cube Thank you for looking. #RubiksCube #Showa #Retro #StrategyGuide