"I think having some kind of job security is unique in like my profession, because books are normally like a one off thing," he says. "Like the idea is like, this is what I'm doing for the next four or five years." He adds that series take time to develop their audience and it doesn't matter how well they do if you don't finish them all. 'There isn't some like biological deadline that is looming the way that there would be for certain professions'