The morning after the 2016 presidential election, composer, pianist and singer Gabriel Kahane packed a suitcase and boarded Amtrak’s Lake Shore Limited bound for Chicago. Over the next thirteen days, he talked to dozens of strangers in dining cars aboard the six trains that would carry him some 8,980 miles around the country. The songs in Book of Travelers are a diary of that journey, and a portrait of America at a time of profound national turbulence.