. . . A butterfly, perhaps? Readers of all ages have celebrated the work of Bill Martin Jr and Lois Ehlert ever since their first collaboration on Chicka Chicka Boom Boom more than twenty-five years ago. Now these two picture-book geniuses are together again in this dynamic and visually stunning counting-and-natural history picture book that's just perfect for reading aloud--and comes complete with a glossary filled with intriguing information about all of the caterpillar stars!

    While the scientific establishment of the eighteenth century was certain that the answer lay in mapping the heavens, John Harrison, an obscure, uneducated clockmaker, dared to imagine a different solution: a seafaring clock. How Harrison held fast to his vision and dedicated his life to the creation of a small jewel of a timepiece that would change the world is a compelling story - as well as a memorable piece of history, science, and biography. A Junior Library Guild Selection