My brother and I are traveling to Virginia in August to visit Mount Vernon and Monticello (as well as some other sites), so we've been reading up on our early American history. I'm reading a very captivating biography of George Washington called His Excellency by Joseph J. Ellis. It's very down-to-earth, personal, and even humorous at times. I would highly recommend!
Before bed I also like to read a novel, so I'm reading one of my all-time favorites and little-known books Giants In The Earth by O. E. Rolvaag. It's a fascinating story of Norwegian immigrants who settled in the vast and lonely plains of the Dakotas in the late 1800s. Beautiful, haunting, and an addictive read.