Obverse Books

Obverse Books is a British publisher initially known for publishing books relating to the character Iris Wildthyme, and currently for the Black Archive series of critical books on Doctor Who. The company also owns publishing rights for stories based on Faction Paradox and Sexton Blake and had an e-book only imprint named Manleigh Books between 2012 and 2016.

(Taken From https://en.wikipedia.org/wiki/Obverse_Books)