Richard Bachman is a pseudonym used by which horror fiction author?

Richard Bachman is a pen name used by horror fiction author Stephen King.

At the beginning of Stephen King's career, the general view among publishers was that an author was limited to one book per year, since publishing more would be unacceptable to the public. King therefore wanted to write under another name, in order to increase his publication without over-saturating the market for the King "brand". He convinced his publisher, Signet Books, to print these novels under a pseudonym.

In his introduction to The Bachman Books, King states that adopting the nom de plume Bachman was also an attempt to make sense out of his career and try to answer the question of whether his success was due to talent or luck. He says he deliberately released the Bachman novels with as little marketing presence as possible and did his best to "load the dice against" Bachman. King concludes that he has yet to find an answer to the "talent versus luck" question, as he felt he was outed as Bachman too early to know. The Bachman book Thinner (1984) sold 28,000 copies during its initial run—and then ten times as many when it was revealed that Bachman was, in fact, King.