This document provides an overview of psake, a PowerShell-powered build system. It begins with a recap of build processes and their goals. It then gives a brief tour of psake, explaining that it addresses issues with existing .NET build systems like MSBuild and NAnt by being directly built in PowerShell. The document demonstrates psake with a silly demo and discusses how psake can integrate with build servers like TFS and Jenkins using plugins. It confirms that psake is capable of continuous integration and deployments by leveraging existing PowerShell capabilities.