Ken Mandelbaum's "Not Since Carrie" is a great one, if you haven't read it.
"Making it Big" is an interesting account of the creation of the Broadway flop "Big", written by one of the producers of the show.
One of my favorites is "Broadway Babies Say Goodnight" by Mark Steyn. He's a British writer, so it's kind of London-centric, but he's got a lot of interesting things to say (and it covers the time period you're looking for).
"Sing Out, Louise" is also fun. It's individual stories from performers, writers, and directors, about specific experiences they've had working on shows. (There's a long piece about Karen Ziemba working on CRAZY FOR YOU, and a good one looking into Graciela and Stevens and Flaherty's working process for ONCE ON THIS ISLAND. There's also a great story about one of the understudies for NICK AND NORA.)
My favorite musical theatre book is "The Making of No, No, Nanette" by Don Davis. It's an incredibly bizarre story, and the book is a dishy delight. And while it's not specifically about musical theatre, Jimmy Kirkwood's book "Diary of a Mad Playwright: Or How I Went On the Road With Mary Martin and Carol Channing and Lived To Tell About It" is a scream.
Updated On: 12/30/04 at 09:33 PM