In 1983, he was elected as a Democrat to the Mississippi House of Representatives, where he served until 1990. During his time as a legislator, he continued his private law practice in Southaven. He has donated over $100,000 to Democratic Party candidates. In 1984 at the De Soto County courthouse in Hernando, Grisham witnessed the harrowing testimony of a 12-year-old rape victim. In his spare time and as a hobby, Grisham began work on his first novel, which explored what would have happened if the girl's father had murdered her assailants. He spent three years on A Time to Kill and finished it in 1987. Initially rejected by many publishers, the manuscript eventually was bought by Wynwood Press, which gave it a modest 5,000-copy printing and published it in June 1988.
 
 The day after Grisham completed A Time to Kill, he began work on another novel, the story of a young attorney lured to an apparently perfect law firm that was not what it appeared. That second book, The Firm became the 7th bestselling novel of 1991. Grisham then went on to produce at least one work a year, most of them widely popular bestsellers. He has been incredibly succesful in that he holds the title for being the sole person to author a number one bestselling novel of the year for seven consecutive years (1994 - 2000).