Doreen Cronin is an American author of children's books, most notably the award-winning Click Clack Moo: Cows That Type. Born in New York and growing up on Long Island, she published in 2000 her first book, Click Clack Moo: Cows That Type , She attended law school, eventually completing it around the same time that Click Clack Moo was completed. Click Clack Moo was later published, winning a number of awards and being named an honor winner for the Caldecott Medal. Cronin currently lives in New York with her husband Andrew and her daughter.