The aim of this Book is to give an overview, based on the results of nearly three decades of intensive research, of transient chaos. One belief that motivates us to write this book is that, transient chaos may not have been appreciated even within the nonlinear-science community, let alone other scientific disciplines.

Ying-Cheng Lai¿s main research interests are Chaotic Dynamics, Complex Networks, Quantum Transport in Nanostructures, Biological Physics, and Signal Processing. He is a professor at the Arizona State University. Tamas Tel's main research interests are Chaotic Dynamics, Stochastic Processes, Hydrodynamics, Spreading of Pollutants, and Environmental Flows.

Introduction.- Chaotic Saddles.- Transition to Transient Chaos.- Fractal Basin Boundaries.- Classical Chaotic Scattering.- Passive and Active Processes in open Chaotic Flows.- Quantum Chaotic Scattering and Transport in Nanosctructures.- Transient Chaos in High Dimensions.- Further Applications  and Outlooks.- Appendix: Multifractal Properties of Transient Chaos.