Over the past several decades, lesbian, gay, and bisexual (LGB) parenting has grown more visible. Alongside this enhanced visibility, research on the experiences of LGB parents and their children has proliferated. The current chapter addresses this research, focusing on several main content areas: family building by LGB people, the transition to parenthood for LGB parents, and functioning and experiences of LGB parents and their children. In the context of discussing what we know about LGB-parent families, we highlight gaps in our knowledge and point to key areas that future research should aim to answer, including how race, ethnicity, social class, and geographic factors shape the experiences of LGB-parent families.