Book excerpt: For forty years Rob Roth has collected rare examples of rock tour posters, advertising posters, rock memorabilia, original artwork and items of merchandise. His spectacular collection is so vast that it has never all been put on public display but when visitors to his spacious New York loft apartment - visitors like Elton John and Alice Cooper - caught a glimpse of some of the material Rob has collected over the years, they were amazed and urged him to let rock fans see the dazzling array of artefacts from the 70s and 80s. For many, the images lovingly catalogued in the pages of this book will evoke nostalgic memories of the blazing lights, drifting smoke and all- pervading audio power of the rock concerts of their youth.