HubSpot Founder and CEO Brian Halligan talks about how he has built a unique, post-modern business culture at HubSpot, inspired by a Mad Men-style thinking. Mad Men has provoked many vibrant discussions among marketing thought leaders. What's changed since the 1960s? What's the same? Brian discusses how he has applied lessons from inbound marketing strategies to foster a creative and productive work environment that emphasizes transparency, experimentation and innovation.