Author Timothy Gassen is president of the World Hockey Association Hall of Fame, and an acknowledged expert on the history of the WHA. He has written, produced, and directed the more than 12 hours of WHA video documentaries for the WHA Hall of Fame DVD and Blu-ray Disc series. His other books on the World Hockey Association include "The WHA Hall of Fame: A Photographic History Of The Rebel League 1972-1979," published by St. Johann Press. It features many previously unpublished WHA photos and a complete league history. He is also author of "Positive Waves: a history of Indianapolis Racers hockey 1974-1979," published by the WHA HOF. Gassen has won Arizona Press Club Awards for his hockey coverage, and he's served as a college hockey team media director, college and pro hockey radio man and TV broadcaster. He has also been a longtime columnist for hockey magazines and the Arizona Daily Star newspaper, and this is his fifth book. Visit the author's company Web site at www.purple-cactus.tv and the WHA Hall of Fame at both WHAhof.com and whaRACERS.com