I think the best (or perhaps the most gruesome) book of the summer is Wicked Plants by Amy Stewart. I read it several weeks ago and then interviewed Stewart, who spilled the beans on her fascination with plants that can seriously harm your health.
The book isn’t only a wonderful A to Z of deadly and poisonous plants but it offers countless historical examples of pain, suffering and death caused by these botanical atrocities. The illustrations are also very special. Enjoy the interview.