I have read hundreds of recreational math books over the years, and this recent addition has become my all time favorite -- a veritable smorgasbord of mathematical puzzles, factoids, amusing anecdotes about famous mathematicians, and insights into all nature of things. There is something for everyone, and the material is presented in a concise and entertaining way. As one example, you will learn the origin and orginator of most of the symbols we use -- e, pi, +, -, the factorial sign (!), etc.  The book also shows a large number of delightful formulas by the Indian math protegy Ramanujan that are rare to see collected in a book for the general reader. Even the type font and layout makes for an easy read. Strongly recommended and a great gift for anyone with an interest in math.