Atlas of Unknowns: a novel by Tania James.  In a web of ambition and deception, two Indian sisters, one emigrating to America, the other staying in Kerala, India, ultimately must choose whether and how to reconcile.

Barbed Wire: The Fence that Changed the West by Joanne S. Liu.  Natives and buffalo, cowboys and cattle, freely ranged the wide open spaces of the American west until the invention and mass production of barbed wire made it possible for homesteaders to fence off their land.

Insomniac by Gayle Greene.  A literature professor who is also a lifelong insomniac explores this debilitating condition with a mix of memoir, an inquiry into the science of insomnia and interviews with insomniacs of all sorts.