Based on The New York Times best-selling book of the same name, the Women in Science calendar features fun and colorful illustrations of the accomplishments of 12 groundbreaking female scientists throughout history. Each full-color monthly spread showcases a different scientist including Wang Zhenyi and Nettie Stevens. If you haven't heard of them before then you need this calendar! 24 page calendar measures 24 x 12 inches when hanging on the wall. Includes bonus spread with September through December 2019.