"Old age, the second half of life" is an important and influential work of the American psychologist Granville Stanley Hall. In this book, the author explores the phenomenon of aging and explains how physical, psychological and social changes affect a person in the second half of life. Hall provides readers with deep insights into how relationships, self-esteem, and psychological comfort can change with age. Thanks to his rich experience and scientific knowledge, the author offers readers to take a new look at old age and make it a pleasant and interesting period of life. "Old age, the second half of life" is not only a scientific work, but also an important guide for every person who is interested in age psychology and psychosocial adaptation.