I’m going to walk you through seven basic adjustments in Aperture 3.4 that will clean up 90 percent of your images: Crop, White Balance, Exposure, Enhance, Highlights & Shadows, Color, and Edge Sharpen.

Great tips from a master: Derrick Story.

Aperture is an underutilized (and probably underpromoted) Apple app for photographers that is enormously useful and really great, and editing isn’t even its strongest suit – it’s a comprehensive photo cataloging tool that really helps you make the most out of whatever you shoot. It goes way beyond what iPhoto can do, and works well with external editors like Photoshop as well.