| Modest Proposals | 1984 |
| Return To Eden | 1985 |
| Bitter Legacy | 1986 |
| Prodigal Sins | 1991 |
| Act of Passion | 1993 |
| I, Elizabeth | 1994 |
| Guenevere Series | |
| Queen of the Summer Country | 1999 |
| The Knight of the Sacred Lake | 2000 |
| The Child of the Holy Grail | 2000 |
| Tristan and Isolde Series | |
| Queen of the Western Isle | 2002 |
| The Maiden of White Hands | 2003 |
| Isolde, The Lady of the Sea | 2002 |
| Non-Fiction | |
| The Fiction of Sex: Themes and Functions of Sex Difference in the Twentieth Century Novel | 1974 |
| Problem of Measure for Measure: Historical Investigation | 1976 |
| The Women's History of the World | 1981 |
| Danger! Men at Work | 1983 |
| Women and Power | 1985 |
| Ben Jonson | 1986 |
| The Female Form: Women Writers and the Conquest of the Novel | 1987 |
| Women's History of the 20th Century | 1989 |
| The Rites of Man: Love, Sex and Death in the Making of the Male | 1991 |
| Love, Sex, Death, and the Making of the Male | 1991 |
| The Children We Deserve: Love and Hate in the Making of the Family | 1994 |
| Who Cooked the Last Supper?: The Women's History of the World | 2001 |
| Hell Hath No Fury: True Stories of Women at War from Antiquity to Iraq (with Robin Cross) | 2008 |