Today we have another live episode from the How I Built This Summit, featuring Katrina Lake of Stitch Fix. Katrina sat down with Guy Raz in front of a live audience in San Francisco in October to discuss building culture at a billion-dollar company, and why it's important – even for the CEO – to "rehire" yourself every year. We have one more episode from the Summit coming up next Thursday; stay tuned for Guy's conversation with Lisa Price of Carol's Daughter.