A number of books in the 2000s have chronicled Southern rock's history, including Randy Poe's "Skydog – The Duane Allman Story" and Rolling Stone writer Mark Kemp's "Dixie Lullaby: A Story of Music, Race & New Beginnings in a New South." More recently "Turn It Up" was released by Ron Eckerman, Lynyrd Skynyrd's former manager and plane crash survivor. Sociologist Jason T. Eastman analyzes contemporary southern rock to illustrate changes in today's southern identity in his book "The Southern Rock Revival: The Old South in a New World."