Merriam-Webster's "Unusual Words Word Search" book features 70 puzzles that highlight obscure, unique, and challenging words, all sourced from Merriam-Webster.com. With themes like 9-letter words, gemstones, double O's, constellations, the periodic table, and meteorology, this book is both fun and educational. It's a great way to build your vocabulary while enjoying a good brain workout. The answer key is included in the back, and the spiral-bound, softcover format with 160 pages makes it easy to enjoy. 7 1/2"L x 9 1/4"W.