The series of three lectures examine different aspects of work as manifested in changes in workers' attitudes, responses to these changes in the European context, and significant European developments in relation to worker participation. The first lecture discusses social, technological, educational, and economic changes that have affected attitudes toward work, particularly in industrial societies, and which have brought about changes in the organizational relationship between management and workers. The second lecture examines changes in the work task, as a part of the changes occurring in advanced industrial societies in relation to work. The discussion centers on the European context to illustrate changes in the approach to work, drawing more on the workers' creativity and control of the job, and touching on different ideas that have influenced this change. The third lecture examines two other changes in relation to work: the condition under which work is carried out, and the nature of the authority structure. A decrease in time spent on work and flexibility of working time are two working conditions that have changed with industrialization. Increased participation in management is also evidenced by collective bargaining, trade unions, worker representation, and work councils. A bibliography is included. (Author/EC)