For those who have been confused when calling the direct order line for Hayden to order The Internet Starter Kit for Macintosh and having Prentice-Hall Computer Publishing answer, my apologies, but don't worry. Prentice-Hall Computer Publishing is the parent company of a number of publishers, including Hayden, Brady, Que, and others. If you do wish to order directly, Hayden asked me to mention that they don't take Discover credit cards. They apologize for not making that clear before.
Option-click to Hide Apps Quickly
This trick has been available in the Mac OS for years, but many people still don't know it. If you have too many windows cluttering up your screen, you can hide specific ones easily as you work. When you're in any application, hold down the Option key and click on another app's window, on the Dock, or in the Finder to switch to that other app and simultaneously hide all the windows in the previously current app.