Phil and Dan tell the behind-the-scenes story of their world tour. Since uploading their first-ever videos as teenagers, Dan and Phil have become two of the world's biggest YouTube stars, and now the humorous avoiders of human contact and direct sunlight have actually gone outside! While traveling around the world on tour, they have collected hundreds of exclusive, intimate and funny photos, as well as revealing and candid side-notes, to show the behind-the-scenes story of their adventure. --Publisher's description.