Andy Weir is an American novelist known for his science-driven fiction that combines technical accuracy with fast-paced, accessible storytelling. Before becoming a full-time writer, he worked as a software engineer, and his strong interest in physics, space travel, and problem-solving heavily shapes his work.

He gained international fame with The Martian, which he initially self-published online before it became a bestseller and was later adapted into a successful film. His writing stands out for its focus on survival, ingenuity, and the practical challenges of science, often explained in a clear and engaging way.

Weir’s later novels, including Artemis and Project Hail Mary, continue this approach, blending high-stakes scenarios with humor and detailed scientific concepts. He is widely recognized for making complex science entertaining while keeping readers deeply invested in his characters’ struggles.