This white paper provides an introduction to hedge funds, targeting readers with a solid understanding of investments. It outlines the complexities and classifications of hedge funds, emphasizing their roles within diversified portfolios. The document explains that hedge funds can span various asset classes and strategies, making their classification both crucial and challenging. It discusses the differences between hedge funds and mutual funds, including aspects such as market exposure, financial instruments, valuation, fees, and liquidity. Furthermore, the paper details the various strategies employed by hedge funds, such as Equity Hedge, Event-Driven, and Macro, and examines the risk factors associated with hedge fund investments. The authors aim to clarify how hedge funds can contribute to asset allocation and the potential benefits they offer to sophisticated investors. The paper also includes references to key data and index providers, as well as a historical overview of hedge funds.