Winner of the 2020 Robert F. Sibert Informational Honor Book Award

A golden age -- Big changes -- Seller of cloth -- An eye-opening trip -- Spreading the word -- Small lake, big discovery -- A most important letter -- In the name of science -- Last letters -- The father of microbiology

"For fans of the "Who Was" series, this lively, accessible, and full-color chapter book biography shows how a self-taught scientist was the first to observe the microbial life in and around us. By building his own microscope, Antony van Leeuwenhoek advanced humanity's understanding of our oft-invisible world around us."--

Ages 7-10

Grades 4 to 6

890L