The eBook, Actions! Photoshop CS5 is valuable to anyone interested in expanding on Photoshop's usefulness.
For beginner to adept experienced user, its PS Actions provide hundreds of productive functions that lighten your work flow. The eBook is iPad2-friendly and uses the extra resolution to display detailed examples.
And nobody has complained about the price!
The whole eBook is available for free.
The only catch is that the 700+ completely original iNovaFX Actions it describes are sold separately. But not individually.
They cost just $25, so the price per each runs about 3.5¢.
What about that free eBook you were promised?