I ran a workshop on January 3, 2010 for the members of PSRI. The main purpose was to explore the sharpening strategies and methods in Photoshop and Lightroom. In the 4-hour long workshop, the first part was some general background information on what sharpening is and why we need it, followed by an overview of the process. Then, using Photoshop and Lightroom, I presented the application of the ideas presented earlier. Following that, the participants practiced on their own images. Below is the slide show of the Powerpoint presentation I used. It does not cover the actual hands-on part, but should give a general idea about the sharpening.