Learn the difference between a plant and a mushroom, peed inside a tropical cyclone, or see all of the parts of a castle with this indispensable new reference.

New title! A portable visual inventory of today's world incorporating dictionary-scale definitions. 2,600 highly detailed illustrations (many in full color) are

Incorporates more than 20,000 words and their definitions, and 6,000 full-color illustrations, plus seventeen chapters on a wide variety of subjects.

FOR STUDENTS GRADES 6-8, AGES 11-14 - Revised & updated edition of the best-selling dictionary written especially for middle school students - Features nearly 7

The ideal book for people who want to increase their word power. Thorough coverage of 1,200 words and 240 roots while introducing 2,300 words. The Vocabulary Bu