This book addresses the urgent need for a large and systematic analysis of current interdisciplinary (ID) research and practice. It demonstrates how ID is essentially a cognitive phenomenon, something different from the frivolous and inconsequential attempt of trying to overcome the disciplinary competencies and exigencies. By ID, the authors show that it is a manifestation of the transversal rationality that underlies current scientific activity. It is the very progress of specialized disciplines that requires interdisciplinary new research practices and new forms of articulation between...