Trick, Photography Book - How to believably blur backgrounds in Photoshop! (Without the funky edges and halo effects! Photoshop tips. - Now YOU Can Create Mind-Blowing Artistic Images With Top Secret Photography Tutorials With Step-By-Step Instructions!
Masking in Photoshop to remove unwanted objects - when you have an image that is symmetrical or nearly so, and one side is perfect while the other is wrought with problems - duplicate the background and flip the layer horizontally.