This self-financed project aims to deepen understanding of the contribution made by the European Parliament to European integration, as seen by the actors involved, since the direct elections of 1979. This collective work, coordinated by Alfredo De Feo and Michael Shackleton, will benefit from the advice and support of Prof. Adrienne Heritier. The project is open to contributions from practitioners and scholars, who share the spirit and the approach of the research.