Recommendations Please!

A & I are taking a mini-vacation.  I have a few books on my Kindle for airplane and poolside reading, but could always use a couple more.  So, I'm looking for recommendations!  I tend towards a couple of specific types.  For non-fiction historical books - I like the Revolutionary War period and WWII.  I haven't read much about the Civil War period, but I am open to it.  For fiction - I like mysteries, medical or legal.   Those are my tendencies, but I am open to breaking out of my ruts.  I've read a few books - "Orange is the New Black" and "The Help" among them - based on the recommendations of others and enjoyed them.  So feel free to expand my boundaries.