A Set of Variations is a 1969 short story collection by Frank O'Connor.
[1] It was compiled shortly after the author's death by his widow, Harriet O'Donovan Sheehy, and includes the following stories: A similar collection was published in the U.K. in 1969 as Collection Three.
The stories included were slightly different, and Collection Three featured one story not included in A Set of Variations ("A Mother's Warning").
[2]