Today’s spotlight is on a book that I am extremely eager to get my hands on. I’ll admit that it sounds like the perfect companion to a day at the beach, and we all know summer is right around the corner! Check out Joanna Philbin’s Rules of Summer. THE RULES OF SUMMER is about two 17 year-old girls living in the same beachfront mansion in East Hampton for the summer, one “upstairs” (the daughter of a very blue-blooded family) and one “downstairs” (the niece of the family’s housekeeper.) Isabel is the privileged daughter who’s used to having guys fall at…