General Book Information Author: Robert Burleigh Illustrator: Raul Colon Lexile Score: 750 Who is Marie Tharp? In part driven by her father's mapmaking career, Marie Tharp became a cartographer (mapmaker) herself. But, instead of mapping the Earth's land, she decided to do something no one else had ever done: she mapped the world's oceans. With the assistance of … [Read more...] about Solving the Puzzle Under the Sea: Marie Tharp Maps the Ocean Floor – Book Review