This document describes the various categories and types of web parts available in the SharePoint 2013/O365 Web Part Gallery. It lists web parts for displaying documents, lists, pictures and apps, as well as those related to blogs, external data connection, communities, content rollup, document sets, filtering, media, search, search-driven content, social collaboration, and custom web parts created with HTML and jQuery. Configuration of some web parts requires trial and error. Contact information is provided for questions.