"Science teachers introducing telescopes or microscopes will find this a helpful read-aloud. It would also be a great reference book for students researching Galileo or van Leeuwenhoek." --Library Lady's Kid Lit

"This is a lovely take on what scientists do and how their efforts can shape our understanding of all things both big and small." --GeekDad

"Meserve's entertaining and informative illustrations are filled with details about the scientists, their objects of study, and the places and times in which they lived; the compositions employ inventive designs to underscore common features of the scientists' lives and work." --The Horn Book Magazine

"This is a fantastic resource for intermediate grades that provides historical context for common scientific instruments. The engaging text and playful illustrations make this an appealing book for young scientists and other curious minds." --Children's Literature