"Charles L. Dodgson was a Mathematical Lecturer at Oxford, better known as Lewis Carroll. This collection of mathematical puzzles was compiled in 1893, following years of insomnia. Dodgson claimed to have solved every puzzle, without pencil and paper, during his sleepness nights. This incredible feat is difficult to comprehend, even for such a genius. The complexity and good humor of the problems and tales are suggestive of his well-loved "Alice in Wonderland". Dodgson also hints at his pioneering the field of symbolic logic."