LOS ANGELES (AP) — On the second floor of the Playboy Mansion, beyond the seemingly endless hallway lined with photos of the famous folks who have visited the legendary party playground, is a narrow staircase that leads to a small loft.

"LOCK DOOR," signed "Hef," reads a handmade note tacked to the loft's tiny entrance.

"Excuse me if I sit?" asks Hugh Hefner, ever the gentleman as he leads a reporter into the cramped room that has only one chair. "I've got a bad hip."

Here in this modest space is where Hefner keeps a detailed record of his life that spans more than 2,500 volumes and counting — a Guinness world record for a personal scrapbook collection.