Everybody Lies by Seth Stephens-Davidowitz, argues that internet search data might be the Holy Grail when it comes to understanding how we behave.  A data scientist at Google, Stephens-Davidowitz has spent the last four years poring over Internet data.  His subjects range from political predictions to recidivism among prison inmates (the harsher the conditions, the more likely a return to crime), the correlation of education and financial success, and the keywords of lying.  This is a lively read for folks who enjoyed books like Freakonomics.