Italo Calvino’s Invisible Cities follows the fantastic tales spun by the Venetian explorer Marco Polo as he regales stories of the sprawling Mongol Empire to the aged Kublai Khan. Over nine chapters, Polo describes dozens of cities through the lens of eleven thematic suites. Invisible Cities is such a rich and vivid text, and I will undoubtedly return to the book several times in the future to mine its depth.