(3) 4-6 Fact Finders: Engineering Wonders series. This brief history of the Great Wall includes a look at its purpose in ancient China, the different dynasties that contributed to its construction, and the unique construction methods and materials. Illustrations, modern photographs, and text boxes on uncluttered pages work together to present the material in a clear, concise manner. Critical thinking questions appended. Reading list. Glos., ind.

Reviewer: Antonio Trujillo

(3) 4-6 Fact Finders: Engineering Wonders series. A brief history of the engineering project includes the canal's inception, political ramifications, trade implications, obstacles, and workers' health issues related to malaria and yellow fever. The lock system of moving ships over Panama's mountainous terrain is explained by both text and infographics. Maps, archival photographs, and text boxes add interest to uncluttered pages. Critical thinking questions appended. Reading list. Glos., ind.

Reviewer: Luther B. Clegg