Yolanda Ridge is the author of fiction and nonfiction books for young readers, including What Poo Can Do: How Animals Are Fighting the Climate Crisis, Microbes to the Rescue: Using Bacteria, Algae and Fungi to Clean Up the Planet and two additional juvenile nonfiction titles from Annick Press. She’s also written several middle-grade novels, including two environment-themed titles for Orca Young Readers. She has a master of science degree and is adept at making complex concepts understandable—a skill she uses in her science writing and teaching. Yolanda lives in Rossland, British Columbia.