Book of Love (Chinese: 北京遇上西雅图之不二情书), also titled Finding Mr. Right 2 in English, is a 2016 Chinese-Hong Kong romance film directed and written by Xue Xiaolu and starring Tang Wei and Wu Xiubo. It was released in China by EDKO (Beijing) Distribution on April 29, 2016.

Book of Love is director-writer Xue Xiaolu's follow-up to the 2013 hit Finding Mr. Right, and it reunites her with lead actors Tang Wei and Wu Xiubo from the first movie, although the two films' plots are not related. Notably, the two leads have separate storylines throughout the movie, only communicating with each other through handwritten letters until their first meeting towards the end of the film.