The process of aging is receiving an increasing amount of attention from behavioral scientists. Middle Age and Aging is an attempt to organize and select from the proliferation of material available in this field. The selections in this volume emphasize some of the major topics that lie closest to the problem of what social and psychological adaptations are required as individuals move through the second half of their lives. Major attention is paid to the importance of age-status and age-sex roles; psychological changes in the life-cycle; social-psychological theories of aging; attitudes toward health; changing family roles; work, retirement, and leisure; certain other dimensions of the immediate social environment such as friendships, neighboring patterns, and living arrangements; differences in cultural settings; and perspectives of time and death.