Brown, Dale, et al. The World of Velazquez, 1599-1660. 1969. Rev. ed.

New York: Time-Life, 1972. Reproduces many of Velazquez's paintings, tells about his life and times, and analyzes some of his work. A good introduction, but it says little about Pareja.

Costello, Clare. "Elizabeth Borton de Trevino." School Library Journal (March 1966): 126-127. An editor for the publishers of I, Juan de Pareja, Farrar, Straus & Giroux, Costello summarizes Trevino's life and accomplishments up to 1966.

De Montreville, Doris, and Donna Hill, eds. Third Book of Junior Authors. New York: H. W. Wilson, 1972. In an autobiographical sketch, Trevino tells of her life and of her research for her books for young readers.

Kingman, Lee, ed. Newbery and Caldecott Medal Books. 1966-1975. Boston: Horn Book, 1975. Contains a transcript of Trevino's Newbery Award acceptance speech as well as a character study of the author by her friend Ross Parmenter.

Kirkpatrick, D...