Although copyright enforcement has always been a controversial issue, it took the advent of the Internet to raise a fundamental challenge to its very raison d’être. Legislative activity in this area during recent years clearly demonstrates the extent to which enforcement has been brought to the forefront of attention, as owners of copyrights find themselves trying to supersede the limitations of law in order to respond effectively to the reproductive power of new technologies. This timely collection of essays by European and international authorities in the field of copyright law presents a variety of valuable perspectives on the multitude of issues arising in respect of copyright enforcement on the Internet.