This document discusses using Visualforce pages in Salesforce1. It covers where Visualforce can be used in Salesforce1, such as in the left navigation menu, publisher actions, and page layouts. It also discusses how to use Visualforce in Salesforce1, including considerations for the user interface, business logic and data binding, navigation, and supporting multiple device types. Tips are provided on how to make Visualforce pages more optimized for the Salesforce1 mobile experience.