One of the greatest tools being used today is Photoshop. A complex and rich visual editing software that can be used for way more than photography. Photoshop has pretty much become a medium in and of itself. But like I said it is rich and complex. So we need all the help we can get in using it to make those pixels dance to our tune.
The web site www.sitepoint.com is offering a little of that help. For a limited The Photoshop Anthology is available for free download. The ebook is a tutorial on Photoshop for web designers but even if your not a web designing Photoshop user the book is worth the price for any Photoshop user.
According to Sitepoint we have 99designs to thank for the book. 
So "Thank You" 99designs.
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I dabble in web design and have always wondered how people use photoshop. I downloaded the book but will take some time to get into it. Anyway thanks for the tip.