The aim of the Chapman Conference on Waves in Magnetospheric Plasmas, February 7–11, 1983, in Hawaii was to bring together investigators of magnetospheric plasma waves having frequencies from VLF whistlers and emissions down through ELF and ULF to Pc5 long period pulsations. The emphasis was on the physics and techniques underlying the entire frequency range. Topics solicited included nonlinear electron and ion cyclotron wave growth; wave-wave interactions, such as VLF-Pcl (0.2–5 Hz), VLF-VLF, and various ULF-VLF; wave-particle interactions; free-energy sources for waves; harmonic generation; the role of heavy ions in wave generation and propagation; artificial wave generation such as Siple transmissions, electrojet modulation, and power line radiation; and wave and spectrum analysis techniques.