Photo-Illustration: Vulture; Photos: Publishers The start of summer is full of promise — lush green nature inviting leisure, extended days brimming with possibilities, and stacks of new books just waiting to be cracked open. These months are most associated with the frothy paperbacks best enjoyed with your feet in the sand, and we’ve rounded up a few blistering thrillers and simmering romances. But we’re also ready to dive into books (both fiction and non-) full of family strife, essays that