What author have you read the most books from?

Yeah, that, or wikipedia makes this look appealing too:
Mathews's next novel, Cigarettes, marked a change in his work. Less whimsical but no less technically sophisticated than his first three novels, it consists of an interlocking series of narratives revolving around a small group of interconnected characters. The book's approach to narrative is generally realistic, and Cigarettes is ultimately moving in a way that none of his previous books attempted to be.[14]

Cigarettes is terrific

Yup

Updike probably. He churned them out.

probably RL stine lol. i collected tons of them because i liked the covers as a little kid then a couple years later a puritan streak in me made me commit to reading all of them. even at the time i knew they were thin gruel and i remember nothing about them now.

as an adult, probably DFW, in my early 20s