This book constitutes the strictly refereed post-workshop proceedings of the Second International Workshop on Parallel Computer Routing and Communication, PCRCW'97, held in Atlanta, Georgia, USA, in June 1997. The volume presents 20 revised full papers carefully selected for inclusion in the proceedings; also included are a keynote paper and three short presentations. The volume is divided in topical sections on routing, router and network architectures, messaging layer support, and deadlock issues. All in all, a representative range of current topics dealing with modern interconnection networks is presented.