The Trade Unions and the Economy Postal Course data consists of two files: Completions The aim of the completions survey was to elucidate general characteristics and experience of postal course students in order to test hypotheses concerning trends in the relationship between previous experience of trade union education, the extent of trade union responsibilities and individual reactions to the postal course. The Trade Unions and Economy course differed in that it was based on structured worksheets that were less demanding than the essays required for <i>The Bargaining System</i>. The survey aimed to discover any reactions from trade union students to these changes. Drop-outs The aim of the drop-outs survey was to provide profile information on those who dropped out, why they began a course, how they adapted to study, how useful they found it in their trade union activities, and why they decided not to continue.