The document discusses several useful IntelliJ IDEA plugins for developers including AngularJS for creating Angular projects, LiveEdit for live preview of code changes, ideaVim for keyboard shortcuts, Key promoter for showing keyboard shortcuts, and QAPlug for code quality analysis tools like CheckStyle, FindBugs, and PMD. It provides instructions for installing and configuring the AngularJS, LiveEdit, and QAPlug plugins as well as an overview of what the ideaVim and Key promoter plugins do. The AngularJS section outlines how to create an Angular project using the AngularJS plugin and install dependencies.