Once helpful source for quick reference when getting started on the Entity Framework is the MSDN Entity Framework Quick Start. You will find four concrete sections covering the basics so you can get up and running.
Many information out there talks a lot about the code first features, but I find myself needing to create the .edmx file from an existing database, which could be tricky to find out there.
In the series of posts I’m preparing I’ll share how to use these techniques and approaches on a layered small, but well designed backed app that will empower RESTful services that can be consumed by any device.
In the meantime, have Entity Framework coding !