Kindle Sale books of the month

I recommend: Jerome Groopman, HOW DOCTORS THINK; Molly Jane Quinn and Jenna Talbott, IT'S LONELY IN THE MODERN WORLD (the Unhappy Hipsters book);
I'm (maybe) buying: Barbara Holland, GENTLEMEN'S BLOOD: A HISTORY OF DUELING FROM SWORDS AT DAWN TO PISTOLS AT DUSK.