(Playbill Broadway Yearbook). Many of the people who work on Broadway keep scrapbooks of their experiences: photos, signed posters, ticket stubs, and, of course the Playbills. These are treasured keepsakes, something to be savored over a lifetime, and then passed on to friends and descendants. Playbill Books, a division of the iconic 128-year-old company that designs the programs for every show on Broadway, has expanded this idea into an annual project that has become a Broadway institution: The Playbill Broadway Yearbook . Taking the form of a high school or college yearbook, the eighth edition is packed with photos (more than 4,000 of them, many in color) and memorabilia from the entire 2011-2012 Broadway season. The new edition includes chapters on 70 Broadway shows, which is every show that ran during the season not just such new shows as Spider-Man: Turn Off the Dark , Once , Newsies , Nice Work If You Can Get It , and One Man, Two Guvnors , but the long-running ones from seasons past, such as Phantom of the Opera , The Book of Mormon , and Wicked . In addition to headshots of all the actors who appeared in Playbill, the book has photos of producers, writers, designers, stage managers, stagehands, musicians, ushers even Leonardo, the "SM" fish who is the backstage mascot at Jersey Boys . This year"s roster is expected to top 10,000 names.