In recent decades, scholars across all areas of marketing have studied consumer gift-giving behavior. Despite the growing popularity of this research topic, no extensive review of the gift-giving literature exists. To that end, this paper offers an expansive review of research on consumer gift-giving, focusing primarily on work coming from within the marketing discipline, but also drawing on foundational pieces from other fields. We review extant scholarship on five of gift-giving's most important aspects-givers' motivations, givers' inputs, giver-recipient mismatches, value creation/reduction, and the greater gift-giving context. In doing so, we illuminate the literature's key agreements and disagreements, shed light on themes that traverse ostensibly disparate gift-giving findings, and develop deeper conceptualizations of gifting constructs. Moreover, we identify opportunities for improvement in the gift-giving literature and use them to create key agendas for future gift-giving research. In sum, this paper offers a single point of reference for gift-giving scholars, improves academia's current understanding of gift-giving, offers several theoretical contributions, and generates multiple paths for future research.