00634cam a2200169 4500 2033559 TxAuBib 20070701120000.0 ||||||s2003||||||||||||||||||||||||und|u TxAuBib Todd Whitaker. What Great Principals Do Differently. Larchmont, NY : 672, 2003. 2005 pp. This book blends school-centered studies with the author's experiences working with hundreds of administrators. It reveals 15 qualities and practices of great principals which elevate them above the rest. 20070701.