The Mandibles by Lionel Shriver. “This novel which takes place in 2029, examines a family in New York after the United States - it’s currency, government, etc. - has collapsed. The book follows an upper middle class family that has been counting on a family fortune, and examines how they deal with their new dystopian reality. More in depth than a true beach book, but I read it last summer and it was a great read”.
