Lewis Carroll in Numberland is written in the warm and witty style characteristic of Professor Robin Wilson. It is an excellent introduction to the mathematical interests and achievements of Charles Lutwidge Dodgson (pron. Dodson!), aka Lewis Carroll, a man known much more for his Alice books than his mathematical prowess, which was considerable. It also gives something of the attitude and outlook of this most interesting man, the period he lived in and fin de siècle Oxford University.
If you're anything like me some of the more mathematical chapters will have you reaching for pen and paper, but that's certainly not mandatory, and there's plenty here for people who baulk at the mere mention of equations. I particularly enjoyed the chapter on logic and would recommend it to anyone who would like an introduction to this fascinating subject.
The style of the writing mirrors the playful and humorous style one associates with Carroll, a man who delighted in entertaining his friends, children and adults alike, with puzzles and games. The book is divided into short, easily digestible chapters -- which makes it perfect for the commute to work! A highly enjoyable read and I heartily recommend it.