Memorializes John Lamont Peterson (1949-2021). After teaching at Claremont's McKenna College and Graduate School in the late 1970s and early 1980s, and realizing in particular the growing impact of the early AIDS epidemic on African American men, Dr. Peterson joined the Center for AIDS Prevention Studies (CAPS), a key program of the AIDS Research Institute at the University of California, San Francisco, where he served as a Research Scientist from 1986 to 1993. Known for his many contributions to understanding the predictors of HIV/AIDS risk reduction, the effects of behavioral interventions to reduce this risk behavior, and the social determinants of racial disparities in HIV infection, primarily among Black men who have sex with men, Dr. Peterson leaves a record of over 70 publications, nearly 20 books and book chapters, and over 100 conference presentations-many with students he mentored. (PsycInfo Database Record (c) 2022 APA, all rights reserved).