Which book is credited with popularizing the cyberpunk genre?

The answer is: Neuromancer. William Gibson’s Neuromancer was published in 1984 and quickly proved itself as a milestone work in science fiction, despite being Gibson’s debut novel.You’ve got a drug-addicted hacker, a dystopian city in Japan, AI, and even a virtual reality of sorts called the matrix. Yep. Did Gibson invent cyberpunk? That’s up for debate, but Neuromancer was definitely one of the earliest and remains one of the most well-known works in the genre.Source