Venture capital refers to investments made in startup companies and small businesses with growth potential. Venture capitalists provide funding to companies in exchange for equity and play an active role in monitoring and advising the companies. The document discusses various aspects of venture capital including the types of investors, stages of financing, activities of venture capitalists like investing, monitoring and exiting investments, and key terms in a term sheet like liquidation preferences and founders' shareholding. It provides an overview of how venture capital works and the roles and considerations of venture capitalists and the companies they fund.