Lynda – Exploring Lightroom: Advanced Workflow Techniques

Add flexibility and efficiency to your Lightroom work by leveraging the power of virtual copies, Smart Previews, and Snapshots and History. In this short course, Chris Orwig introduces advanced workflow techniques that provide photo editors with greater artistic freedom and more creative possibilities in Lightroom.

Topics include:
Creating virtual copies
Sorting and filtering virtual copies
Building Smart Previews
Creating snapshots

http://www.lynda.com/Lightroom-tutorials/Exploring-Lightroom-Advanced-Workflow-Techniques/417083-2.html