John Creasey, who produced 600 novels (gulp!) and used 28 pseudonyms (How did he remember who he was supposed to be at each particular time?) wrote, as you can guess, rather speedily. When he finished, he would put the MS in a drawer and leave it for 6 months while he wrote a few more books, and only then would he re-read the first effort and so come at it afresh to begin his rewriting & editing.
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