Slow Horses by Mick Herron. Great tale of intrigue inside MI5. Started a little choppy but then the story took off and the characters rose to the fore.
The Lies of Locke Lamora by Scott Lynch. What an awesome tale of a gang of thieves ensnared in conspiracy on top of conspiracy. Really fun read.
Solutions and Other Problems by Allie Brosh. At times funny, at times deeply sad, always very human. Some of the insights into dogs and pet owners are hilarious.