Ann Malaspina is the author of more than fifteen nonfiction books for young people. Her interest in equal rights and social change often leads her to write about people struggling on the margins of society to improve their quality of life. She was inspired to write Yasmin's Hammer after traveling in South Asia and reading news reports about young workers in Bangladesh. Malaspina lives with her family in northern New Jersey. Her website is annmalaspina.com. Doug Chayka has illustrated several picture books, including Four Feet, Two Sandals, chosen as a Notable Social Studies Trade Book for Young People and a Notable Book for a Global Society. Chayka has taught illustration at Pratt Institute and currently teaches at Ringling College of Art. His work has also been displayed in the Society of Illustrators Best of Children's Book Art exhibit. Chayka and his wife live in Sarasota, Florida. His Web site is dougchayka.com.