Solving the Puzzle Under the Sea: Marie Tharp Maps the Ocean Floor

Though her discoveries were pivotal to the theory of plate tectonics, geologist and cartographer Marie Tharp is still relatively unknown. In this picture-book biography, Burleigh presents Tharp's story in her own enthusiastic, imagined voice. "Maps. I love them!" she exclaims before describing her life and accomplishments. In a conversational tone, she discusses her curiosity, her struggles to be accepted in the boys'-club atmosphere of 1950s research labs, her dogged determination to work in science, her belief in her sea-floor-mapping project, and her satisfaction at seeing her beautiful map gracing the walls of schools and museums. Along the way, she explains depth soundings, cartographic concepts, and plate tectonics. Colón's soft colored-pencil illustrations are a wonderful match for ocean scenes and frequent maps, and a few helpful diagrams further illustrate concepts... very worthwhile. Further reading and some provocative critical-thinking questions close out the volume.

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Gr 2-4--In this excellent biography of scientist Marie Tharp, Burleigh, writing in the first person, allows this adept geologist and oceanographic cartographer to tell her own story. Map lover Tharp became one of the 20th century's most important scientists, despite working in a field that greatly favored men. With fellow geologist Bruce Heezen, she mapped the world's oceans. Colon's signature softly hued, textured watercolors greatly enhance the text. One image depicts a research ship in the water upon which scientists took measurements called soundings to chart the ocean's depth. The writing is accessible and immediate, and though Burleigh acknowledges that Tharp was a woman working in a man's field, he casts her story in a happy light. A biographical page is appended, as well as thorough back matter. VERDICT A finely told, beautifully illustrated biography that saves a world class scientist from obscurity.--Anne Chapman Callaghan, Racine Public Library, WI

Burleigh and Colon follow 2013's Look Up! with the story of another female scientist, Marie Tharp. Raised by a mapmaker, Tharp developed an early interest in exploring uncharted land; her passion eventually led her to the oceans. Burleigh gives readers an up-close view of Tharp's experiences and hunches through a first-person perspective: "Could the seafloor really be mapped? I thought so--and I wanted to give it a try!" Despite discrimination she faced as a woman, Tharp became an accomplished scientist, mapping the Atlantic using soundings and helping advance the theory of plate tectonics. Colon's warm watercolor-and-pencil art brings warmth and energy to the pages through his thatched and wavelike textures, while an afterword provides further detail about Tharp's undertaking. Ages 4-8. Illustrator's agency: Morgan Gaynin. (Jan.)