Kevin Costner and his wife, Christine, are expecting, his rep said Thursday.

Christine is “doing well. She’s excited,” Costner said at the AT&T Pebble Beach National Pro-Am golf tournament on Friday. “I’m excited. My kids are excited.”

How is he getting ready for the baby’s arrival? Said Costner: “There’s a lot of books to read!”

Costner, 52, and handbag designer Christine Baumgartner, 32, wed at his ranch near Aspen, Col., in September 2004.