It's no secret that the 'ol Book of Faces can be a great marketing tool for photographers as well as just a generally fun place to show off some family photos. Facebook, however, has a tendency to compress, convert, or otherwise mangle your photos if you don't do some image prep ahead of time to maximize their display quality.  Here are some steps I'd recommend to optimize your images for Facebook display. I recommend using Photoshop but you could certainly…