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The ultimate collection of over 1,000 handcrafted sudoku puzzles, in a range of difficulties, handcrafted by the masters at Nikoli in Japan (whose Workman ...
A wonderfully entertaining overview of all of psychology by a world expert
Are you a human? Do you have a mind? Then this book is ...
From the personal and coaching experience of an ADHDer, actionable tools and techniques to understand your ADHD brain and unlock life's possibilities.
Do you ...
Test yourself against a fiendishly tricky series of IQ test-style puzzles, the perfect training for those who want to prepare for a Mensa IQ test ...
Prove your logical and arithmetical prowess by solving the exceptionally tricky problems in Mensa's Most Difficult Number Puzzles.
This full-colour book features a huge ...