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This Video Explains All 27 Photoshop Blending Modes in Detail

There are 27 different blending modes in Photoshop, and unless you're a real retouching junkie, chances are good you haven't explored each and every one of them in detail. But have no fear, to paraphrase an old Apple ad, "there's a [YouTube tutorial] for that."

Photoshop Tutorial: Using Luminosity Masks vs Blend If

Photoshop's tools frequently overlap, and a great example of this is Luminosity Masks vs Blend If. Both can be used to do the same thing, but they work in slightly different ways. This useful tutorial breaks down the differences so you know when and how to use each tool.