Constituting the largest reference work on "Doctor Who" ever written, the six-volume "About Time" strives to become the ultimate reference guide to the worlds longest-running science fiction program. Written by Lawrence Miles ("Faction Paradox") and long-time sci-fi commentator Tat Wood, "About Time" focuses on the continuity of "Doctor Who" (its characters, alien races and the like), but also examines the show as a work of social commentary. In particular, Miles and Wood dissect the politics and social issues that shaped the show during its unprecedented 26-year run (from 1963 to 1989), detailing how the issues of the day influenced this series. As part of this grand opus, About Time 2 examines "Doctor Who" Seasons 4 to 6 (1966 to 1969) -- a massive paradigm shift for the show, as Patrick Troughton takes over the lead role. Among other things, About Time 2 answers such vitally important "Who" questions as "What's the Timeline of the Cybermen?," "Whatever Happened to the USA?" and "Did Sergeant Pepper Know the Doctor?"