This tip was posted over at NPhoto and I know a lot of people who could benefit from it so I though I would pass it along for others to enjoy.
Portrait photography is challenging for a whole host of reasons. Getting your portrait right in-camera is only half the battle. Knowing how to edit your portraits can be quite difficult when it comes to cropping a photo. Cropping in an awkward position on your subject can end up ruining a perfectly good shot. This handy cheat sheet shows you clearly where you can and can’t crop subjects without it looking awkward.