The collection comprises: technical papers and publications from Alfred William Crook's employment with AEI Ltd; technical papers and publications collected during his employment with Associated Electrical Industries Ltd but from non-Associated Electrical Industries sources, including the Central Electricity Generating Board; personal papers relating to Alfred William Crook's friendship and working relationship with Thomas Edward Allibone. Collection of papers from Professor A. W. Crook relating to the Turbine Generating Department at AEI, Trafford Park.