The most impressive book I read in 2018 was the "Three-Body" series. This science fiction novel was written by Liu Cixin, which described the communication and conflict between the Earth civilization and the alien civilization. The book involved a lot of scientific concepts and philosophical thinking, but it also integrated a lot of discussions about human nature. It was very fascinating to read. The " Three-Body Problem " series not only had a compact story, but the plot was also complicated. The author Liu Cixin's writing style was also excellent, allowing the readers to feel the world and emotions in the book. In addition, the world view and settings in the book were also very unique and thought-provoking. Therefore, the " Three-Body Problem " series became one of my deepest impressions in 2018. It not only made me have a strong interest in science fiction, but also inspired my scientific and philosophical thinking.