It has received the Colorado Children's Book Award (1972) and has been named to several best books lists, including the ALA Best Books for Young Adults (1973), the Library of Congress Children's Books of the Year (1973), and the School Library Journal Best Books of the Year (1973). In 2005, it made the list of the top 1000 titles owned by Online Computer Library Center members, a list of "the intellectual works that have been judged to be worth owning by the 'purchase vote' of libraries around the globe".