Check out A Serrated Edge: https://canonpress.com/products/a-serrated-edge 

Check out Noeo Science now: https://noeoscience.com/ 
For more from Doug, subscribe to Canon+. Use promo code DOUG99 to get your first month for 99 cents https://mycanonplus.com/

Check out the new episode of Man Rampant, season three, on the Canon app: https://canonpress.com/app/