Giff Constable is an author, lean practitioner, and repeat entrepreneur who has sold three companies and helped build many others. He is the author of the award-winning book Talking to Humans, on customer discovery, as well as recently-released Testing with Humans, on running experiments. Most recently, he was the VP of Product at Axial, a VC-backed startup, where he transformed their product and engineering culture to embrace lean and agile methods. Prior to Axial, he was CEO of Neo, a globally-recognized innovation consulting firm acquired by Pivotal, where he led major innovation projects at The Mayo Clinic, Time Inc., and others. He lives outside of New York City.