Here is a short overview of the techniques:
Defining Colors
Split-Toning Effect
Flexible Vignette
Skin Retouching In Camera Raw
Setting Lights
Distinguished Paleness
Dodge And Burn Look
Bright Eyes
The Orton Effect
Optimizing Lasso Selections
Aligning Layer Contents
Restoring Selections
More Photoshop Tips and Tricks
Naturally Increased Light
Simulate Infrared Images
Color Look With An Adjustment Layer
Controlling Mid-Tone Contrasts
Sunset
Creating Smiles
Colorful Water Drops
Skin Color
Matching Skin Tones
Reducing Noise
Retro Look With Curves
Identifying Layers
Conserving Resources
Classy Sepia Look
Precise Positioning
Applying Layer Styles Multiple Times