1,000 Inventions & Discoveries

Reading and 'riting and 'rithmetic combine in a trio of brain-teasing titles. From stone tools to the cotton gin to cloned sheep, 1000 Inventions & Discoveries by Roger Bridgman surveys life-changing breakthroughs. Starting in 3,000,000 B.C., the each chapter covers a distinct historical period, offering tightly constructed chunks of information alongside more in-depth explanations. A timeline along the bottom of each spread fills in details. The book is produced in association with the Smithsonian Institution. (Aug.)