‎'‎‎.‎‎.‎‎.‎ this book is an excellent one ‎.‎‎.‎‎.‎ anyone wishing to open it for the first time should be warned about the danger of becoming addicted to reading it on a regular basis‎.‎‎'‎ Yuri V‎.‎ Rogovchenko‎,‎ Zentralblatt MATH ‎'‎A perpetual idea machine‎,‎ Clifford Pickover is one of the most creative‎,‎ original thinkers in the world today‎.‎‎'‎ Journal of Recreational Mathematics ‎'‎Run‎,‎ leap‎,‎ scurry and scoot to your nearest bookstore and get his books‎.‎‎'‎ BYTE ‎'‎Pickover inspires a new generation of da Vincis to build unknown flying machines and create new Mona Lisas‎.‎‎'‎ Christian Science Monitor ‎'‎Pickover is van Leeuwenhoek‎'‎s twentieth century equivalent‎.‎‎'‎ OMNI ‎'‎The Mathematics of Oz stands out from the crowd‎.‎ There are enough challenges here to keep you away from the TV all Christmas‎.‎‎'‎ New Scientist ‎'‎‎.‎‎.‎‎.‎ the material in the book is not duplicated in other collections‎,‎ and some of it is even new‎,‎ a real rarity in recreational mathematics‎.‎‎'‎ Underwood Dudley‎,‎ author of Mathematical Cranks ‎'‎Readers cannot deny the wit‎,‎ humor‎,‎ and intelligent challenges Pickover demands of them‎.‎ those who love solving puzzles will surely appreciate the whimsy and the sport‎.‎‎'‎ Leonardo ‎'‎This is an excellent collection of mathematical problems and puzzles at all levels of mathematical sophistication ‎.‎‎.‎‎.‎ The reader is guided to think about many interesting areas‎,‎ and various methods are exploited and presented in a non‎-traditional way‎.‎‎'‎ European Mathematical Society ‎'‎‎.‎‎.‎‎.‎ [an] astounding collection of more than 100 puzzles ‎.‎‎.‎‎.‎ Mathematics of Oz is a stimulating romp through often mind‎-bending terrain‎.‎‎'‎ Science News ‎'‎‎.‎‎.‎‎.‎ an excellent collection of mathematical problems and puzzles at all levels of mathematical sophistication‎.‎‎'‎ EMS Newsletter ‎'‎‎.‎‎.‎‎.‎ the problems themselves ‎- more than a hundred in total ‎- amaze‎,‎ challenge and delight in equal proportion‎.‎‎'‎ The Mathematical Gazette ‎'‎Beside being a pleasant reading‎,‎ this book is capable of endearing its readers to mathematics‎.‎ ‎.‎‎.‎‎.‎useful reading for not only mathematics‎-orientated people‎,‎ but laymen interested in thinking can find exciting riddles and thinking methods as well‎.‎ ‎.‎‎.‎‎.‎This book is a recommended reading for each Homo sapiens who likes thinking‎.‎‎'‎ Acta Scientiarum Mathematicarum