His books include Jazz Singing: America's Great Voices from Bessie Smith to Bebop and Beyond, Sinatra! The Song is You: A Singer's Art, Stardust Melodies: the Biography of Twelve of America's Most Popular Songs and Looney Tunes and Merrie Melodies: An Illustrated Guide to the Warner Bros. Cartoons, among others.
His Sinatra bio was awarded the 1996 ASCAPDeems Taylor Award for Excellence in Music Criticism.
As of April 19, 2007, he claimed to be the owner of the world's largest iTunes library with more than 170,000 tracks. There is no confirmation of this claim.