Notes about this keyboard:
When you download the fonts, put them in your C:\Windows\Fonts directory so they will be available. Then pull up any program where all your Windows fonts are available (e.g. MS Word). Programs that have one standard font (like an old version of Notepad) will not work.
You must use the shift key to produce the letters on the top of the keys.
The best place to learn about these fonts is in the appendices to the Lord of the Rings where they are defined.