The history of phenomenology can be understood essentially as a history of border-crossing: disciplinary, geographical, linguistic, and cultural. Only by crossing borders can we be aware that there is always a beyond of what we have hitherto experienced, thought, and understood. Doing phenomenology is nothing other than daring to experience the un-experienced and thinking the un-thought by way of a constant movement of border-crossing, as Husserl, Heidegger, Sartre, Merleau-Ponty and other contemporary phenomenologists have shown.The essays collected in this volume are issued from part of the papers presented to the 4th International Conference of P.E.A.CE (Phenomenology for East-Asian CirclE) entitled "Border-Crossing". They are the collective effort of East-Asian phenomenologists from Japan, South Korea, China, Taiwan and Hong Kong, with the support of their American and European colleagues, to continue this centenary philosophical movement of border-crossing.