Shmoop is a digital curriculum and test prep company that makes fun, rigorous learning and teaching materials. Shmoop content is written by master teachers and Ph.D. students from Stanford, Harvard, UC Berkeley, and other top universities. Shmoop Learning Guides, Test Prep, and Teacher's Editions balance a teen-friendly, approachable style with academically rigorous materials to help teachers help students understand how subjects relate to their daily lives.