So what inspired this career advice book in the manga form? It was a combination of two main factors, Pink wrote in an e-mail.

"First, I spent two months last year in Japan studying the manga industry," Pink writes. "One of the things you quickly discover is that comics in Japan and comics in American have very different places in people's lives. In Japan, comics are ubquitous. You can find manga for just about every topic -- from time management to politics to history to investing. Meanwhile, manga was becoming extremely popular here in America. But we still thought of it as a kids' medium. Nobody was creating it for people over 17. So I thought: Why not use this incredibly powerful expressive form to reinvent the business book?"