Bell, Elizabeth S., Kay Boyle: A Study of Short Fiction, Twayne, 1992.

Bell's book is probably the standard reference work for studies of Boyle's short stories. In brief descriptions and analyses, she outlines the most important themes and techniques of Boyle's work.

Elkins, Marilyn, ed., Critical Essays on Kay Boyle, G. K. Hall and Co., 1997.

Although not focused exclusively on Boyle's stories, this anthology gives the reader a good introduction to a number of different critical approaches to the study of Boyle's fiction.

Spanier, Sandra, Kay Boyle, Artist and Activist, Paragon House, 1986.

Spanier's biography of Boyle is not as thorough as Joan Mellen's but is, nonetheless, interesting.