Christopher Isherwood gives fascinating insight into pre-war Berlin.

MR NORRIS CHANGES TRAINS
The first of Christopher Isherwood's classic 'Berlin' novels, this portrays the encounter and growing friendship between young William Bradshaw and the urbane and mildly sinister Mr Norris. Piquant, witty and oblique, it vividly evokes the atmosphere of pre-war Berlin, and forcefully conveys an ironic political parable.

GOODBYE TO BERLIN
The inspiration for the film Cabaret and ...