If recent history has taught anything, it is that humanity now finds itself at a critical junction, a crossroads between an unsettling future and a promising one. 40 Lessons preserves a murmur of how we got to this point, deriving essential wisdom from modern-day pioneers, from farmers who breed insects to engineers who procure water from thin air. The stories and anecdotes laid out across these 40 chapters present lessons both big and small, both personal and general. Together, they lay out an eclectic, engaging roadmap for navigating the ever-changing world we inhabit today.