Peter and the Starcatcher: The Annotated Script of the Broadway Play, by Rick Elice

Lovely book that includes the script but also lots of notes from those involved in creating the story and show, as well as deleted scenes of interest that give a very interesting view of how the show evolved. I wouldn't mind seeing this (ahem). The only quibble I have is that the commentary in some of the notes got just a little precious at times.

Uncle Vanya, by Anton Chekhov

For some reason I had this down as a Must Read from some list or another. So very Russian. So very classic. I like it--maybe someday I'll see it performed.