Photoshop can help a designer achieve many things. Cropping, sharpening, extracting - the software's ability to enhance photographs feels like a lifesaver at times. However, the program also has a dark side. Certain designers airbrushing skills are something to marvel at and others' skills are quite the opposite.
Case in point: Avril Lavigne on the cover of Maxim.
At first glance Avril looks good, or appropriate for the cover of Maxim anyway. But then you catch of a glimpse of her right arm. In attempts to give Ms. Lavigne a slimmer waist some designer mutilated her arm. Trying to perfect a cover image is justifiable, but publishing a mistake this obvious is definitely not.
Please Photoshop responsibly.