One of the most prolific writers was the late John Creasy who founded, with some friends, the British Crime Writers' Association. Creasy admitted that before he sold his first story he collected 740 rejection slips. Undeterred, he went on to become one of the world's best known and admired writers of mystery novels.
When he died in 1973 Creasy had - had 560 books published in eighty countries. It was a remarkable achievement for a man who had to leave grammar school at the age of 14 (he was the seventh son of a family of nine) because his father was ill and his parents needed the money he could earn as an office boy in London.
Other past and fast writers have included: Georges Simenon, creator of Inspector Maigret; Alexander Dumas, who once wrote a full-length romance in 36 hours; Edgar Wallace who, using dictaphones and a fast stenographer, dictated his thrillers at 3,500 words an hour. Even more incredible was Samuel Johnson, the 18th century lexicographer and writer who, short of money when his mother died, sat down and wrote a novel Rasselas in the evenings of one week to pay for her funeral and her debts!
Amazing as these cases are - and most writers would like to emulate them - writers usually settle down to their own rhythm and a speed at which they can steadily write. Setting a target too high and trying to reach it daily could lead to poor creativity and a low standard of written English caused by the desperate attempt to reach the target. Set yourself a target within your capabilities, which you know you can comfortably reach without any of this happening. You will then feel happy with your writing output at the end of the day and what you have created will be of saleable standard.