Daemonologie

Daemonologie, or its more lengthy title: Daemonologie, in Forme of a Dialogue, Divided into three Bookes, was a thesis which was published in Edinburgh and printed by Robert Walde-grave, Anno 1597, Cum Privilegio Regio ("with royal privilege")

A volume was found by the Thirteenth Doctor among the possessions of Becka Savage. (TV: The Witchfinders)

Behind the scenes

 * Though left unmentioned in The Witchfinders, in the real world, Daemonologie was written and published by King James I.
 * The book could also be seen as a reference to the Dæmons from TV: The Dæmons.