Few predicted how huge it would become upon its return, and Davies is the man credited with much of that success. As showrunner he oversaw every creative aspect of the science fiction drama, wrote many of its scripts, and was an exceptionally hands-on executive producer – the book The Writer’s Tale, a diary of daily emails and text messages between Davies and journalist Benjamin Cook. details the attention to detail he gave to almost every part of the show, from approving merchandise designs to overseeing the plans for media events.