D. Llanwyn Jones was born in Sutton Coldfield, England, on February 14, 1938. He received the B.Sc. and Ph.D. degrees from the University of London, King's College, in 1960 and 1963, respectively.At King's College, he was appointed to a Lectureship in 1962 and to a Readership, his current post, in 1972. He has led the Radiophysics Group since 1972. He has held Visiting Professorships at the University of Colorado in 1968-1969, the University of Nagoya (Japan) in 1975, and the University of Kochi (Japan) in 1987. In Colorado, he was one of the first Visiting Fellows of the Cooperative Institute for Research in Environmental Sciences. His research work has been in the theory and observation of the propagation of ELF and VLF radio waves in the Earth-ionosphere duct and in the radio emissions from lightning. His enduring interest has been in experimental and theoretical aspects of the Schumann resonances. More recently, his research has developed in the theory and computation of ionospheric and subsurface radio waves.