One of the best ways to explore the City of Light beyond the Eiffel Tower is to visit its quintessentially French open-air markets. To find the most interesting stops, pack a copy of the just-out second edition of “Markets of Paris” (The Little Bookroom, $18.95) by Cambridge writer Marjorie R. Williams and Dixon Long. The personably written and colorful guide includes more than 100 food markets, historic covered markets, and flea, antiques, and craft markets in the city’s 20 arrondissements. At 5-by-6-inches, “Markets” is small enough to fit into your shopping tote. (Book signing: Partners Village Store, 865 Main Road, Westport, July 14, 3:30-5 p.m.)