Story, video by Whitney Ullman 100 Things to do in Philadelphia Before You Die, the latest in a national series of travel guides by Reedy Press, was just released. The guide was written by Irene Levy Baker, who has spent 25 years exploring Philadelphia. It includes tips she discovered while working with five local tourist bureaus, celebrity chefs, hotels and attractions. Baker is the owner of Spotlight Public Relations, a firm specializing in hospitality and restaurants. Prior to starting her public relations firm in 1998, Baker spent nearly a decade at the Philadelphia Convention and Visitors Bureau. EXPLORE PHILLY: Tell us about the inspiration behind writing this particular book? BAKER: I’ve been exploring…