What is Ecumenism? Is Christian unity a legitimate hope or just a pious illusion? The aim of this book is to analyze the real obstacles that stand in the path to unity and to propose solutions, where these are possible. Distinguished authors from the main Christian denominations offer a unique insight into the problem of Christian divisions and the relationships between Christian communities. This work is not a politically correct exercise in diplomacy; rather, it informs the reader about the actual state of the ecumenical dialogue.