as ¿hard to reach¿ so as to refocus on transforming social systems and personal values, beliefs and approaches is understudied. This book uses case examples based on HIV research with Indigenous youth, internally displaced women, LGBTQ communities in the Global North and Global South, and persons at the intersection of these identities, to identify successful approaches to working with marginalized and often vulnerable communities and groups. The chapters signal the need for attention to five key social factors when developing successful approaches: context and storytelling; cultural humility; critical hope; imagination and possibility; and love, intimate inquiry, and the beloved community, if nations, individuals and communities are to address the epidemic in a sustainable and impactful way.