Health Psychology: Well-Being in a Diverse World is a 552-page textbook written by Regan A. R. Gurung and published by SAGE Publications. The book, published in 2018, is available in ringbound format and is written in English. It covers the subject of psychology, specifically health psychology, and is aimed at students and educators in the field. The book explores the relationship between psychological and physical health, and how cultural diversity can impact health and well-being.