I'm currently reading Just My Type: A Book About Fonts by Simon Garfield which is, as the subtitle states, a book about fonts and a damn good read it is too.
In a wonderful burst of synchronicity, Bleeding Cool featured this recently:
No word on where this awesome thing came from but I love it! If you want a slightly bigger version, go see Bleeding Cool.
In the meantime, I'm stuck on J, M and Y.
Little help, people?