Excerpted from wikipedia:
Edmund Cooper was born in Marple, near Stockport in Cheshire on April 30, 1926. He served in the Merchant Navy towards the end of the Second World War. After World War II, he trained as a teacher and began to publish short stories. His first novel, Deadly Image (later republished as The Uncertain Midnight) was completed in 1957 and published in 1958. A 1956 short story, Brain Child, was adapted as the movie The Invisible Boy (1957).
In 1969 The Uncertain Midnight was adapted for Swiss television, in French. At the height of his popularity, in the 1970s, he began to review science fiction for the Sunday Times and continued to do so until his death in 1982.
Apart from the website mentioned above there was another Edmund Cooper website full of information about the author and his publications.