Layers: The Complete Guide to Photoshop's Most Powerful Feature
Adobe Master Class: Advanced Compositing in Photoshop: Bringing the Impossible to Reality with Bret Malley
The Photoshop Workbook: Professional Retouching and Compositing Tips, Tricks, and Techniques
The Headshot: The Secrets to Creating Amazing Headshot Portraits (Voices That Matter)
Picture Perfect Lighting: An Innovative Lighting System for Photographing People