The book is a Spanish-English bilingual meditation on the role that the railroad and the carpal (itinerant vaudeville troupes) played in the Mexican-American communities of the Southwest.  Artist Marta Sánchez and the writer Norma Elia Cantú collaboratively render images and poetry that poignantly reflect specific periods in that history. /Presentación del libro colaborativo de estas dos artistas, visual y poeta, sobre el rol del tren itinerante en las comunidades mejicoamericanas.