Font Book is great way to manage your fonts. Here are some ways that you can use your Font Book:
1. Add Fonts to your Font Book
There are several ways that you can add your fonts into the system. You can either (a) select a File then drop down the menu to Add Fonts, (b) use the shortcut Command+O, (c) drag the font from the Finder to the center column of the Font Book, known as the Font List, or (d) click the plus sign located on the bottom of the Font List. Just specify the location of your font and you are good to go.
2. Preview Your Fonts in your Font Book
Sure, you can easily change the font of whatever you are typing to see if it works, but why go to all that trouble if you don’t really know what you want. It’s very inefficient and will take too much time if you want to test out 50 different fonts. Font Book allows you to preview your fonts. When you open Font Book, you will see three columns. The first column allows you to create collections, the second has the font list and the third column is the preview window. Once you select a font from the Font List, the rightmost column will show you how that font will look like. To be able to compare fonts side by side, double click the font name and a new window with the preview will also pop out.
3. Resolve Duplicate Fonts in your Font Book
Unlike previous versions of OS X, Lion now has a new way to resolve duplicate fonts. Using the menu bar, select Edit+Look for Duplicates. The shortcut to this is Command+L. A new setting sheet will appear. You will have three choices: Resolve Automatically, Resolve Manually, and Cancel. If you select the automatic option, any duplicate fonts will go directly to the Trash, a handy-dandy tool for those who don’t want to be bothered that much.