Google is running a doodle on its homepage today, celebrating the 165th birthday of Bram Stoker, the world famous author of Dracula. This is, by far, Stoker's most well-known work.
While the doodle obviously pays homage to that particular novel, Stoker had many other works, and if you click on the doodle, you'll find Google's results for "Bram Stoker Books," rather than simply "Bram Stoker" or "Dracula". This provides Google a nice opportunity to showcase its Knowledge Graph results - particularly its recently introduced "Knowledge Graph Carousel," which displays visual results across the top of the search results page.
Beyond a simple showing off of the Knowledge Graph, however, it also serves to promote Google Books and Google Shopping. The actual spot where you typically see the main knowledge graph result (in this case, for Bram Stoker himself) is occupied by sponsored listings for books from Google Shopping (from places like Audible.com, eBay, Barnes & Noble, etc.). The Stoker Knowledge panel is moved down for the ads.
The Knowledge Carousel at the top, however, lets you click on individual books to see their respective Knowledge Graph results, which in most cases provide visual links (via the book covers) to go to Google Books to find ebook versions or print versions the works.
The doodle first appeared on the other side of the world, as usual. We reported on it here, where you can learn more about Stoker and his impact on literature.