Introduction: A Tale of Two Tacos -- Part I. Proto-Tacos -- Maize and the Making of Mexico -- Burritos in the Borderlands -- Part II. National Tacos -- From the Pastry War to Parisian Mole -- The Rise and Fall of the Chili Queens -- Inventing the Mexican American Taco -- Part III. Global Tacos -- The First Wave of Global Mexican -- The Blue Corn Bonanza -- Conclusion: The Battle of the Taco Trucks.