National Book Award winner Nathaniel Philbrick, author of “In the Heart of the Sea: The Tragedy of the Whaleship Essex,” will speak at Bridgewater State University Tuesday. The book has been selected as the spring 2013 “One Book, One Community” choice for the university and the town of Bridgewater. Susan McCombe, director of Bridgewater State’s Office of University and Community Partnerships, said organizers chose the book because it deals with the history of Nantucket and whaling. The author’s talk begins at 7:30 p.m. in the Horace Mann Auditorium. A book sale and signing will follow, and the event is free and open to the public. Philbrick, a Massachusetts native, won the National Book Award for nonfiction in 2000 for “In the Heart of the Sea.” A previous book, “Mayflower,” won the Massachusetts Book Award and was a Pulitzer Prize finalist.