TOD:
I love me "Variety: Book of Show Business Awards"
I love all the Ethan Mordden books.
I love "Not Since Carrie."
I love all the Pictorial Histories (in widely varying degrees, of course, of movie studioes (MGM, Fox, Paramount, RKO, Columbia and WB). The MGM book is best of them all...for content, visual aesthetics, etc. The Fox book is plain and disappointing, visually, but invaluable as reference.
I love the oversized Hollywood Musicals book (glossy black dust jacket with color photo from "Barkleys of Broadway" on cover.