This document provides an overview of swaps, including interest rate swaps, currency swaps, and commodity swaps. It defines a swap as an agreement to exchange cash flows according to specified conditions. Interest rate swaps involve exchanging fixed and floating rate payments. Currency swaps also typically involve an exchange of principal amounts. Commodity swaps define a notional principal in terms of a commodity rather than exchanging principal. Examples of swap structures and cash flows are provided to illustrate how the different types of swaps work.