Pebble Books, an imprint of Capstone, specializes in creating engaging nonfiction titles for emergent and early readers, typically in grades K–3. The imprint focuses on delivering simple, accessible content that introduces young learners to fundamental concepts across various subjects, including science, social studies, and biographies. Pebble Books are designed to support early literacy development by combining straightforward text with vibrant photographs and illustrations, making complex topics approachable for young minds.