Number 6 is a bit of a heavy one. It is a true crime book by Dr Helen Morrison, who has interviewed some of the most famous serial murderers.
Her theories are really interesting and I really enjoyed the look inside some of these dangerous minds.
Dr Morrison interviews Gacy, Bundy, Gein and Rose West to name a few, and I always get hooked whenever I decide to re-read it.
Image from Amazon.co.uk
I have currently lent this one to Lauren of The Beauty Habit, who has put it in the freezer. Too scary! :D