The book edited by four known specialists of European history presents for the first time a discussion among European historians on the European public sphere since the 1950s. It treats the general perspective and deals also in special articles with the role played by the European Union, by the Council of Europe, and by national media such as television and film. The volume shows that the role of the European public sphere is often underestimated and that it is gradually becoming more influential and forceful not only in politics, but also in culture. Sous la direction de quatre specialistes renommes de l'histoire europeenne, cet ouvrage presente de facon inedite un debat entre historiens de l'Europe sur l'espace public europeen et son evolution depuis les annees 1950. La question est abordee dans son ensemble, mais certaines contributions traitent aussi plus specifiquement du role joue par l'Union europeenne, par le Conseil de l'Europe, et par les medias nationaux, comme la television et le cinema. Ce volume montre que l'on a souvent sous-estime l'espace public europeen, alors que son influence est de plus en plus importante, tant au niveau politique que culturel.