“Walking in Mexico City is fascinating all the time. There’s so much happening on the street.” Journalist Aaron Reiss, photographer Sam Youkilis, and many others share stories about walking — funny, profound, unexpected, and moving. FIELD GUIDE is our new audio and art project from the The California Sunday Magazine x Pop-Up Magazine creative team. Presented with support from Asana. Explore more and order the print edition: popupm.ag/fieldguide | The California Sunday Magazine