The book the time lords (including the doctor) read when studying at the academy, the full color in world history that pieces together the true story of Gallifrey from the many and contradictory accounts that survived the Last Great time war.
Doctor Who: A Brief History of time lords tells the story of all of this ancient, legendary civilization, of notable historical figures, of Gallifrey itself, of the Time War and much more. The planet Gallifrey. The Shining World of the seven systems. Often to be found in the constellation of Kasterborous. Birthplace of one of the oldest civilizations in the universe: The time lords.