By building his own microscope, Antony van Leeuwenhoek advanced humanity’s understanding of our oft-invisible world around us. This full-color chapter book biography shows how a self-taught scientist was the first to observe the microbial life in and around us. Microbes are everywhere: in the soil and oceans, in snow, Sonlight resource: https://www.sonlight.com/products/all-in-a-drop