I'm at the Unicorn pub in Canterbury, Kent. It is not far from the bike rental place on St. Dunstans and slightly out of the city walls, near the train station.
This pub is cheap, decent and unpretentious. I come here a lot to read. The people are local and the beer selection is pretty good considering. Sometimes I sit in here and experience the sensation of having found something I forgot I lost. The kitchen burned down last month, so I bring my own food in from outside now.