Peter Winkler has done it again. Following the enthusiastic reactions to his last book, he has once more managed to compile a wonderful collection of elegant mathematical puzzles to challenge and entertain his readers. This book is aimed at lovers of mathematics, puzzle enthusiasts, and those who enjoy demanding intellectual challenges. Primarily, it seeks to engage those for whom the world of mathematics is well-ordered, logical, and intuitive, while also being open to being enlightened. In the first volume of the original edition, Peter Winkler presents us with a wonderful collection of challenging mathematical problems that are witty, accessible, surprising, and beautiful. This is undoubtedly the best collection of mathematical puzzles.