I’m escaping the city the last week of August and heading to sandier surroundings. The first stop is the 17 miles of free beaches on Rhode Island’s Block Island. I’ve bought my ferry ticket, printed out a list of must-see sites and reseplaceed the island’s best eats. The one thing I’m missing is a good read for the down-time in the sun (sitting under my umbrella of course!) Does anyone have a suggestion? — Erica P.