The book "Flow Past Highly Compliant Boundaries and in Collapsible Tubes" documents the results of the IUTAM Symposium held from March 26 to 30, 2001, at the University of Warwick. It is a collection of rigorously peer-reviewed and edited articles written by selected participants. The aim was to summarize the current state of research in this specific field and present the most significant findings. The editors, Peter W. Carpenter and Timothy J. Pedley, ensured that the contributions are of high quality and make a valuable contribution to the scientific discussion. The book is aimed at professionals and students engaged in fluid mechanics and related disciplines, providing a solid foundation for understanding complex flow phenomena in compliant boundaries and collapsible tubes.