Dave Lewis first heard the music of Led Zeppelin in 1969 at the age of 13. The effect has been a lasting one. He is the editor and founder of the acclaimed magazine, Tight But Loose, which is currently in its 40th year. He is also the author of a number of books on Led Zeppelin and his work has also appeared in Record Collector, Q, Mojo and Classic Rock. Mike Tremaglio is one of the foremost Led Zeppelin researchers and has chronicled their work over many years in print and on the web. For many years, he wrote popular tour retrospectives for the highly regarded Tight but Loose magazine. He has also contributed to several of co-author Dave Lewiss books and magazine features.