Book Antiqua font for Apple Mail?

As it turns out, Book Antigua is installed by the operating system, but in a location that is not in the default search locations for fonts. Thus, it won't be visible in the Show Fonts panel.

My previous post is correct once you make an adjustment in Font Book to include the Font, and make it available to the Show Fonts panel. There are two alternatives to resolve this.

1. Copy just the BookAntigua.ttc font into your local Library Fonts folder. [Simplest]
   1. Ensure that the Library folder is visible within your home directory

      If not, open a Finder window, click command+J, and select Show Library Folder

   2. In Finder, press shift+command+G (Go to Folder), and copy/paste the following into it:
      /Library/Application Support/Apple/Fonts/iWork
      1. Option-Drag (copy) the BookAntigua.ttc font to your home Library folder's Fonts folder
      2. It will now be visible in the Show Fonts panel.
2. Add a new Font Collection in Font Book
   1. Open Font Book (Launchpad : Other : Font Book)
   2. At the bottom of Collections in the left panel, click + to add a collection
      1. Name it iWork and press return
      2. Right-click on the iWork Collection name, and from the secondary menu, Add Fonts...
         1. The dialog may open to the /Library/Application Support/Apple/Fonts folder that also shows the iWork folder. If true, click on the iWork folder, and then click the Open button. The fonts will be added to the iWork Collection. You may have to activate them, or just Book Antigua.
         2. If not in the above location, Find the Library entry on the location selector, and manually navigate to the above iWork folder location. Then click open to populate the iWork Collection.
            

Book Antigua is not among the standard fonts. It is installed by the operating system into:

/Library/Application Support/Apple/Fonts/iWork

That location, oddly enough, is not among the standard font search locations for the operating system. Consequently, one must add that folder of fonts as a new collection to Font Book, before automatically becoming visible in the Show Fonts panel, or application font menu. See my instructions for this process elsewhere in this post.

Select your Mail signature text. Right-click on that selection, and from the secondary menu, choose Font ▸ Show Fonts. Make your Book Antigua font selection. Done.