This document provides an overview of investment banking as a career. It discusses three main functions: investment banking, research and trading, and advisory services. It describes what investment bankers typically do, including corporate finance deals like IPOs, debt offerings, and mergers and acquisitions. The document outlines the underwriting process for securities offerings and the role of investment banks as underwriters. It also discusses the skills needed for a career in investment banking, such as knowledge of economics, business, finance, accounting, and strong communication skills.