Don Marr is a portrait photographer in Portland, Oregon, creating distinctive portraits with a natural look for models, actors, families, seniors and the business community. 
He has taught at the Santa Fe Photo Workshops and at Newspace in Portland.  He also teaches online photography classes at The Compelling Image.
He is the author of two books: 
Beginner's Guide to Photographic Lighting Techniques and Available Light: Photographic Techniques for Using Existing Light Sources.