Travel tales were as popular in the Middle Ages as they are now. Famous examples are the travels of Marco Polo and John Mandeville who travelled to the edges of the known world (and beyond). On a smaller scale pilgrim journeys were of greater use to the average man/woman in the later Middle Ages. They could help you get some reduction on your time in purgatory, so good instructions before setting off on a pilgrimage were valuable. Usually they probably circulated on loose leaves, or scrolls, which were easier to carry along, but the ones that have survived the ages can often be found in manuscripts.