This article introduces the specialty area of the psychology of men and masculinity to the broader community of American psychologists, focusing on research conducted using the gender role strain paradigm. The review covers the rationale for and aims of the psychology of men and masculinity and the gender role strain paradigm. It provides an extensive discussion of masculinity ideologies--the core construct in the strain paradigm--including the definition of masculinity ideology and considerations of masculinity ideology versus masculinity ideologies, traditional masculinity ideology, the measurement of masculinity ideologies, the Male Role Norms Inventory-Revised, women's and adolescent's masculinity ideologies, and conformity to masculine norms. It then takes up the 3 types of masculine gender role strain (discrepancy, dysfunction, and trauma) and the normative male alexithymia hypothesis. Finally, it considers future research directions. (PsycINFO Database Record (c) 2011 APA, all rights reserved). 2011 APA, all rights reserved