He is most known for writing The Tripods trilogy under the pseudonym John Christopher. He did his war service in the Royal Signal Corps1941-1946. A scholarship from the Rockefeller Foundation made it possible for him to pursue his writing career beginning with The Winter Swan. In 1966 he started writing (science-)fiction for adolescents.
Bibliography
The Winter Swan (1949)
The Twenty-Second Century (1954)
The Year Of The Comet (1955) (in USA: Planet In Peril, 1959)
The Death Of Grass (1956) (in USA: No Blade Of Grass, 1957)