The current trend towards the realization of complex systems-on-chips (SOCs) requires the combined efforts and attention of experts in a wide range of areas including embedded hardware/software systems, specific IP cores, reconfigurable architectures, signal and image processing architectures, low power design techniques, design methods and CAD tools, test and verification, modelling, and timing issues. Thus the papers presented here address a wide range of SOC design topics. The text comprises of a selection of the papers presented at VLSI-SOC '01, the eleventh International Conference on Very Large Scale Integration of Systems-on-Chip, which was sponsored by the International Federation for Information Processing (IFIP) Technical Committee 10 / Working Group 10.5, and held in Montpellier, France in December 2001. It should prove useful reading for researchers working on microelectronics system integration, design, and CAD of integrated circuits and systems on chips.