Challenges: A Memoir of My Life in Opera by Sarah Caldwell, with Rebecca Matlock. Wesleyan University Press, Middletown, CT, U.S.A., 2008. 256 pp., illus. Hardcover. ISBN: 978-0-8195-6885-4

Charles Ives Reconsidered by Gayle Sherwood Magee. University of Illinois Press, Urbana and Chicago, 2008. 256 pp., illus. Paper. ISBN: 978-0-252-03326-1