entertainment with math terms

G Is for Googol: A Math Alphabet Book
David M. Schwartz
Here’s a math dictionary you may not want to put down once you begin to look at it! While not exhaustive (only one interesting math term from each letter of the alphabet), it will whet your appetite for more math! Filled with humor and entertainment, Schwartz appeals to the older reader in this delightful book.
Topic: math
Age Level: middle school
You'll use it occasionally