• Book party for The Grand Surprise: The Journals of Leo Lerman. The Osborne, 205 W. 57th St., nr. Seventh Ave., 6 p.m. Lerman was an urban sophisticate and onetime editor of Vanity Fair, whose journals reveal that he once passed up the opportunity to sleep with Yul Brynner; somehow this egregious mistake will not keep such notables as Steve Martin, Richard Meier, Sonny Mehta, S.I. Newhouse, and Gloria Vanderbilt from attending the party.

• Museum of Jewish Heritage's Heritage dinner. Edmond J. Safra Hall, 36 Battery Pl., nr. West Side Hwy., 6:30 p.m. Scheduled to attend: Eliot Spitzer, Bernard Spitzer, and Anne Spitzer — Governor Steamroller, the elder Mr. Steamroller, and the Mother of All Steamrollers. Missing: Bride of Steamroller.

Or check out our Agenda listings for tonight, selected by New York's culture editors.