A bound printed document distributed at the start of a tour, with every itinerary detail for the run: daily schedules, hotel info, contacts, day sheets, flight details, ground transport. The tour book is a relic that's still used by some old-school crews who want everything in their hand. Most modern tours have replaced the printed tour book with a PDF distributed via Dropbox or accessed through a tour-management app. Brand-conscious managers still print physical tour books as a keepsake.