Studies of single women are an important complement to those of childlessness. For centuries in northwestern Europe, singlehood and childlessness went hand in hand, in surprisingly large numbers. In the mid-1700s, increasing numbers of women bore children outside of marriage. Then, in the late nineteenth century, a small but substantial number of married women began to be childless--a trend that continued into the twentieth century, with the important exception of the baby boom. Traister's book helps us to discern between childlessness and singleness.