Book (Not So) Short: Raise Your Hand If You’re Sure I couldn’t get the catchy jingle from the 80’s commercial for Sure deodorant (you remember, the one with the Statue of Liberty at the end of it – thanks, YouTube) out of my head while I was reading the relatively new book, Confidence: How Winning Streaks and Losing Streaks Begin and End. Written by HBS professor Rosabeth Moss Kantor, Confidence is one of the few business books I’ve read that’s both long and worth reading in full. The book has scores of examples of both winning and losing streaks, from sports, business, politics, and other walks of life, and it does a great job of breaking down the core elements…