Amazon China has launched a video promotional service for featured books and authors. Gao Lin, the cover designer for the book *The Beauty of Programming*, helped create a promotional video. On Gao Lin's blog, he explained it as follows: The short film uses simple animations to convey profound truths. Programming might be tedious, but if you love thinking, you can find joy in it, just like playing the piano on a keyboard. In terms of visual style, it is consistent with the artistic design of the book—simple and hand-drawn.