Stephen Coles is Editorial Director & Associate Curator at Letterform Archive in San Francisco. He publishes Fonts In Use and Typographica and wrote the book The Anatomy of Type. In a past life he was a creative director at FontShop and a member of the FontFont TypeBoard.
These lists include some books he personally recommends. What you can’t find here, unfortunately, are his favorite typographic references that are out of print. Learn more about those on Typographica where you can find links to second-hand sources. Also, see the Typographica Library for other book lists, including metal type specimens available online.