As part of the "Technology of the Ancients" series, coverage of ancient cultures includes significant contributions to medicine, agriculture, mathematics and architecture. For the Mesopotamians around 8000-539 BCE, life in the Fertile Crescent between the Tigris and Euphrates rivers is considered the Cradle of Civilization. Problem solving in medicine, agriculture, mathematics and architecture are aptly cover multiple disciplines. Mesopotamians successfully managed their civilization with methods and ideas still in place around the modern world today: irrigation, plowing, navigation, kiln-fired bricks, a formal written language, and even a symbol that represents the value of zero. Another classic invention by the Sumerians appears to be the wheel, which today varies greatly in size, materials, and purpose. In contrast, however, the Aztecs, the Incas, and the Mayans are credited with other significant technological advances as presented in the series. Chapters have red sub-titles in bold caps with archival prints that dramatically chronicle events. Details about the Mesopotamians are presented with perspective and appropriate context. Active young readers will find similarities with today's culture in spite of missing pieces of their history and lost artifacts due to theft, destruction and warfare. Separate story boxes have a yellow background and provide more specific descriptions. A timeline, glossary, suggested books and websites, and a lengthy index incorporate curricular materials across subjects for engaging students. Reviewer: Susan Treadway, M.Ed.