This guide was compiled as part of a larger project, ‘Australia’s Post-War Reconstruction Project Reassessed’, which was funded by the Australian Research Council whose assistance is gratefully acknowledged. For several years Graeme Powell was almost a permanent occupant of the National Archives’ reading room in Canberra, while Stuart Macintyre made numerous visits there. They were helped by many of the staff of the Reference and Information Services Section who located and retrieved large quantities of records and shed light on some of the mysteries of departmental recordkeeping. In particular, thanks are due to Carolyn Connor, Denis Connor, Anne Piggott, Leslie Weatherall and Michael Wenke. From the outset of the project, Ross Gibbs, former Director-General of the National Archives, keenly supported the idea of this research guide.