Editorial

Abstract

This special issue of Classical and Quantum Gravity constitutes the proceedings of the 4th Edoardo Amaldi Conference on Gravitational Waves held in Perth, Western Australia in July 2001. The field of gravitational wave detection has been slowly emerging since the pioneering experiments of Joseph Weber more than 30 years ago alerted the world to the possibility of actual detection of gravitational waves. The funding of kilometre scale interferometers and the planning of million kilometre scale space interferometers has grown the field of gravitational wave detection to a size where major review meetings are essential to obtain an overview of the field.