This document summarizes key concepts and theorists related to social capital. It discusses the work of Pierre Bourdieu, James Coleman, and Robert Putnam, who view social capital as the advantages generated by social networks and relationships. It also covers network perspectives that focus on measuring individuals' social ties and potential access to resources. The document outlines theories of social capital and studies that have tested relationships between social networks, accessed and mobilized social capital, and socioeconomic outcomes.