context: Born in Enfield, Middlesex, Haining began his career as a reporter in Essex and then moved to London where he worked on a trade magazine before joining the publishing house of New English Library in 1963.
source: Haining achieved the position of Editorial Director before becoming a full-time writer in the early 1970s.
reference_original: Haining consiguió la posición de Director Editorial antes de convertirse en un escritor a tiempo completo a principios de 1970.
reference_flipped: Haining consiguió la posición de Directora Editorial antes de convertirse en una escritora a tiempo completo a principios de 1970.