River Song still a riddle? Stumped by the stolen planets in the Medusa Cascade? Forgotten what happened in the Timelines That Never Happened? Look no further...

This is the ultimate guide to everything and everyone that's ever happened, un-happened and happened again in the worlds and times of the Doctor. The Doctor Who Encyclopedia covers the Eleventh Doctor's first two seasons, plus every Ninth and Tenth Doctor story, and is packed with photographs and artwork from seven stunning years of adventures - including the charity specials, animated adventures, online Adventure Games, TARDISodes and preludes. This is your complete tour of time and space - from Abaddon and Inspector Abberline to Melody Zucker and the Zygons.