Series
There are 3 books in the Remembrance of Earth's Past series.
Published between 2006 and 2008, in the same order they are meant to be read.
Against the backdrop of China's Cultural Revolution, astrophysicist Ye Wenjie makes contact with an alien civilization poised to invade Earth, fracturing humanity into factions of welcome and resistance. Liu fuses hard science with philosophical grandeur, challenging anthropocentrism and questioning
All 3 books total 1,518 pages.
The Books Oracle — track the series you are partway through, and see what to read next.