Photographs taken of tall buildings or within a room commonly have a distorted perspective. Learn how to use Photoshop's crop tool to crop and straighten an image in one step.

This video is part of the Adobe approved video-training "Learn Photoshop CS4 by Video" by Peachpit, Adobe Press and video2brain.

http://www.peachpit.com/learnbyvideo
http://video2brain.com/en/products-2.htm

The complete training program offers 19 hours of video instruction and a 120-page printed guide to teach you the fundamentals of Adobe Photoshop CS4 as well as the basic principles of graphic design. You'll master the program's interface, and learn how to use essential commands and tools to retouch pictures, combine type with images, and create dramatic visual effects. Quizzes round out each chapter to reinforce what you've learned. (less info)