The Dark Forest (黑暗森林), by Cixin Liu, is the second book in the Remembrance of Earth’s Past series and is translated from Chinese by Joel Martinsen. This is the sequel to the 2015 Hugo-award winning novel, The Three Body Problem, which received an enormous amount of well-deserved praise. The Dark Forest is no different; it is an absolutely excellent sci-fi story that I recommend checking out.
Note that this post has significant spoilers for the first book in the series (The Three Body Problem). If you haven't read that yet, stop here. Otherwise I try to avoid spoilers from book two in this review.