Darling, who has written books about astronomy and science for young adults, has followed the successful formula found in his Universal Book of Astronomy (Wiley, 2004), to compile an encyclopedia of mathematical terms, concepts, and problems; short biographies of pioneering mathematicians; puzzles; diagrams; pictures; and history. Entries cover subjects ranging from the fairly simple (arithmetic) to the more complex (Cabali-Yau space). The goal is to present "the unusual and the outrageous, the fanciful and the fantastic: a compendium of the mathematics they didn't teach you in school."
