Multiple sexual partnerships ae a major driver of the HIV epidemic, and yet this topic is inadequately covered in HIV prevention curricula for young people. Promoting Partner Reduction: Helping Young People Understand and Avoid HIV Risks from Multiple Partnerships is a set of activities created to address multiple partnerships, with an emphasis on those that are overlapping or concurrent (sometimes referred to as “multiple concurrent partnerships” or MCPs).  This resource was designed to supplement other programs on sexuality education or HIV prevention.