The science fiction genre.
The J stands for Joanne and the K stands for Kathleen. However, Jo does not actually have a middle name; her full name is Joanne Rowling. The publisher thought that she should use her initials so that boys would read her books by thinking that they were written by a guy. She picked Kathleen because it was her grandmother's name.
Asimov didn't write just in one genre, but his fiction was largely Science Fiction.
In "Murder, She Wrote," the character Andy was played by actor John O'Leary. He appeared in several episodes throughout the series, which starred Angela Lansbury as Jessica Fletcher. The show aired from 1984 to 1996 and became a beloved classic in the mystery genre. O'Leary's role added to the diverse ensemble of characters that contributed to the show's success.
Jules Verne best merits this title. He also wrote stuff such as Michael Strogoff about, essentially, a Czarist IKGB agent, and things like around the world in 80 days which are not science fiction as he described no technics beyond his period. But, he did found the genre of science fiction, and how!
Priestly wrote a whodunit genre.
He wrote his work in the Dark Romantics genre.
She wrote the Harry Potter Series
Edith Wharton in 1920.
He wrote about culture and life
Shakespeare wrote poetry and plays.
History
Joanne Harris
Machiavelli primarily wrote in the genre of political philosophy. His most famous work, "The Prince," is a treatise on politics and leadership.
He wrote plays and poetry.
She wrote the whole twilight series including another of the same genre.
Johann Sebastian Bach