Ok so this is difficult to put in words but I want to know how designers present their Graphics Design work in screenshots something like this (source: Dribbble):
Not about the iPhone but I'm talking about presenting the design as a photograph taken from side-view, I believe it is some sort of Photoshop thing but since I don't know what to call this pattern, I couldn't Google anything on this.
Similar examples are this, this and many other on Dribbble.
Link to a brief tutorial on How-To creating such snap-shots would be great.