Installing Fonts with Font Book

Question

I recieved an Illustrator file to work on from a collegue. In addtion, they packaged the fonts that I needed to work with the file. When I unpackaged the file, the fonts showed up as a post script font, but would not load into Font Book. When I tried to add them through font book, I could see the files, but could not select them they were "greyed-out." If I doubleclick the file it opens up Font Book, but won't do anything else.
PLEASE HELP!

Answer 1

Font Book can read PostScript fonts. But from the sounds of it, you don't have the whole font. Type 1 PostScript fonts are a set. One file is a suitcase containing all of the low res bitmap screen fonts. The rest are the outline printer fonts. As an example, here's Adobe Garamond.
Adobe Garamond
AGarBol
AGarBolIta
AGarIta
AGarReg
AGarSem
AGarSemIta
The first file which I highlighted in green is the font suitcase of bitmap screen fonts. The rest are the outline printer fonts.
1) The files for a Type 1 PostScript font must have both the screen and printer fonts for a given set in order to work. They also must be in the same folder.
2) The suitcase of bitmap fonts will work alone, but output will be terrible since the system will print the fonts using the 72 dpi screen fonts in the suitcase if the outline portions are missing.
3) Having only the outline fonts will not work. You will get exactly what you are having problems with. You can see the fonts, but Font Book won't load them. That's not a problem with Font Book itself. No font manager will load outline fonts without the matching suitcase of screen fonts present.