The author characterizes Warren as "one of the most successful of women composers" and chronicles the Musical America article (1975) in which five U.S. orchestras were asked what works by women they had performed during the previous decade. Warren works topped the list as most-performed. Warren is discussed as the only woman among the group of prominent American neo-Romanticists that include Howard Hanson, Samuel Barber and Gian Carlo Menotti. A biographical summary details Warren's early musical studies, years as composer-accompanist for important singers, marriage, decision to give up concertizing to concentrate on composition, and provides a brief discussion of some of her major works.

LePage interviewed Warren for this entry in the second volume of her series. The material, generally accurate, includes biographical data and several long quotes from the composer, quotes from reviews, information about her major works, a selected list of compositions, a discography, and addresses of her publishers.

Fifth volume of the series, Composers of North America, this first book-length study of the composer provides a biography, as well as a chronology of major works, an analysis of her musical style and principal works, a catalog, discography, and bibliography (unannotated). The book contains 16 pages of photographs and numerous musical examples.

The book contains a biography, an interview, catalog of works, discography, annotated bibliography, listing of compositions, and sources of texts.