I've just got this book called 'Foto-modernity in Central Europe 1918-45'-looks fantastic and covers one of the most exciting eras of photography. Contains work by Sudek, Funke etc and many lesser known but fascinating photographers.Also 'Atget:the pioneer'-looks at a hugely influeuntial photographer and his legacy.You can see why the Surrealists (see also previous book) loved his work.
Mario Giacomelli-Italy's Bill Brandt (rather a crude generalization but well worth a look).