Knock, knock! The door to your future doesn’t open by itself. In this free session, led by a LinkedIn insider, you'll learn to harness the power of professional networking in the online world. Part of the IU Alumni Association’s “Life After IU” series, the event happens Thursday, Oct. 24, at 6 p.m. at the DeVault Alumni Center, 1000 E. 17th St. (across the street from Assembly Hall). Free food, easy parking. Register online: alumni.indiana.edu/lifeafteriu.