A central open source program office is a designated place where open source is supported, nurtured, shared, explained, and grown inside a company. With such an office in place, businesses can establish and execute on their open source strategies in clear terms, giving their leaders, developers, marketers, and other staff the tools they need to make open source a success within their operations. This guide aims to help you figure out why and how to establish a program to manage the open source use and creation inside your company, as well as to show how your developers can make their own contributions to open source projects outside your operations.