The papers in this volume address advanced nonlinear topics in the general areas of vibration mitigation and system identification, such as, methods of analysis of strongly nonlinear dyanmical systems, techniques and methodologies for interpreting complex, multi-frequency transitions in damped nonlinear responses, new approaches for passive vibration mitigation based on nonlinear targeted energy transfer (TET) and the associated concept of nonlinear energy sink (NES), and an overview and assessment of current nonlinear system identification techniques.