Who  thinks they know everything about Dr. Who? You think you do? Harper Design has just what the doctor ordered: Who-ology: The Official Miscellany ($19.99).

How many planets has the TARDIS visited?

What’s the best way to defeat a Sontaran?

Who are the members of the Doctor’s family?

What are the 20 best ways to defeat a Dalek?

What are the galactic coordinates of Gallifrey?

And you thought you knew all the answers?

Packed with amazing facts, figures and stories, Who-ology is an unforgettable journey through 55 years of Doctor Who. Test your knowledge of the last Time Lord and the worlds he’s visited, from Totters Lane to Trenzalore. Get lost in guides to UNIT call signs, the inner workings of sonic screwdrivers and a complete list of Doctor Who monsters and their creators. Who-ology is an utterly unique tour of space and time.

This revised and expanded edition features new material and covers Matt Smith’s final season, all three seasons of the Peter Capaldi era as well as the 2017 Christmas special introducing the first female Doctor played by Jodie Whittaker.