Steve O'Brien (Author) Steve O'Brien is a film and TV journalist. In an 18-year career, he has written for SFX Magazine, Sci-Fi Now, Total Film and Empire and is a regular contributor to the official Doctor Who Magazine. Steve has also made many appearances on documentaries included on the Doctor Who DVD range and on BBC Four. Simon Guerrier (Author) Simon Guerrier is co-author of Whographica and The Scientific Secrets of Doctor Who for BBC Books, and has written countless Doctor Who books, comics, audio plays and documentaries. In 2016, Simon was a guest on Front Row and The Infinite Monkey Cage on Radio 4, and with his brother Thomas, makes films and documentaries – most recently John Ruskin's Eurythmic Girls. Ben Morris (Author) Ben Morris has illustrated for Radio Times, Sunday Times and The Scotsman, and is a regular contributor to Doctor Who Magazine. He has created dozens of character icons and puzzles for Doctor Who Adventures. For BBC Books he has illustrated Who-ology (2013), Wit, Wisdom and Timey Wimey Stuff - The Quotable Doctor Who (2014) and Time Trips (2015).