The writings of Margaret Cavendish, Duchess of Newcastle, are remarkable for their vivid depiction of the mores and mentality of seventeenth-century England. This edition includes all of Cavendish's Sociable Letters (1664), a collection of writings that comments on a wide range of aspects of seventeenth-century society, such as war and peace, science and medicine, English and Classical literatures, and social issues such as choosing a spouse, married life, infidelity, divorce, and the option of women not to marry. This Broadview edition includes: A critical introduction and a valuable selection of primary documents that situate Margaret Cavendish and Sociable Letters within the context of English letter writing and other early women writers. The appendices contain the letters Cavendish wrote during her courtship with William Cavendish; letters by two family members, Elizabeth Cavendish Egerton and Christiana Cavendish; letters written by Aphra Behn, Dorothy Osborne, and Angel Day; and an essay by Francis Bacon.