Christopher Isherwood gives fascinating insight into pre-war Berlin.MR NORRIS CHANGES TRAINSThe 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 polit...