Sean O’Neal is the author of five books devoted to Elvis Presley; Elvis, The Lost Photographs, Elvis Inc., My Boy Elvis, Elvis Presley Memorabilia, and Collecting Elvis Presley, the 1950s. He has contributed to numerous other book, video, and recording projects related to Elvis. He also has been extensively interviewed on radio and in newspapers on the subject of Elvis Presley.

In addition to writing about Elvis, O’Neal is an internationally known collector of Elvis Presley memorabilia. The highlight of his Elvis collecting to date has been the discovery of Elvis’ second Memphis Recording Service Acetate. He also was one of the original memorabilia contributors to the Rock and Roll Hall of Fame Museum in Cleveland, Ohio.