I rode a lot of trains for this book. Commuter trains out of New York, passenger trains to Chicago, an overnight train to California. I drew freight trains — massive and rumbling — at rail yards in New Jersey. I sketched commuters in Grand Central. Then I took the sketches, and some stories, and put them into one narrative — the story of five trains making their way across America. Even though the book is about trains, I hope it’s about something more. Adventure, or discovery. How we start in one place, and get off a few hours later someplace else, and find ourselves different. Travel, at its best, is transformative.