It’s Thanksgiving Day across the Atlantic in Massachusetts, where I live. There, among my American family and friends, it’s a quiet, contemplative day, but here in the Chiado, the heart of downtown Lisbon and the city’s oldest shopping district, everything is bustling, as if the Portuguese are scurrying to get a one-day head start on Black Friday. It’s a raw, drizzly day, a sign of winter’s approach, and the cobbled sidewalks are slippery. I’ve walked these hilly streets for 35-plus years, often darting from one bookstore to the next—new, used, rare—flipping through the pages of everything from current bestsellers, to obscure dime-store colonial-era comics, to rare folios of brightly-colored, highly inaccurate antique maps. That’s what I’m doing today, I’m book shopping.