* Perennial Vegetables by Eric Toensmeier--eye opening list of vegetables that come back year after year
* The Hard Thing About Hard Things, by Ben Horowitz. Somewhat presumptuously, I bought multiple copies and sent them to some of my friends/acquaintances that were CEOs.
* Climate Wars, by Gwynne Dyer. This mix of fiction and non fiction really brought the climate change crisis to my attention.