- With Jane Baker, co-wrote the novelization adaptations of the Doctor Who episodes Mark of the Rani, Ultimate Foe, Time and the Rani, Terror of the Vervoids.
- With Jane Baker, co-wrote the Doctor Who "find your fate" book Race Against Time.
- Provided a commentary for the Doctor Who DVD "The Ultimate Foe".
- Provided a commentary for the Doctor Who DVD "Terror of the Vervoids".
- (2010) Provided a commentary for the Doctor Who (1963) DVD "Time and the Rani".
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