Dalek Genius

Dalek Genius was, along with The Dark Side of Skaro, a best-selling book by Professor L.R.S. Baynes on Davros and the creation of the Daleks. The Doctor started reading it before his sixth incarnation, although "the idea of reading two rather turgid volumes written by an apologist about the Daleks" appalled him. (AUDIO: Davros)

Behind the scenes
Dalek Genius was the name of a feature from Terry Nation's Dalek Annual 1976 that described technology and inventions created by the Daleks. Similarly, The Dark Side of Skaro was a feature from the 1977 Dalek annual.