First if you are a writer, you should know what a genre is to classify your book. The process of understanding book genres is important for the querying process. The knowledge of genres helps to connect with your readers and helps your book’s categorisation. What are Book Genres? Genres are like flavours in the literary world. They help readers find books to satisfy their quest for reading. The genre could be romance, mystery, fantasy, horror, or anything which draws the reader. They also help market their book to the right audience. Each genre has its own potential gambit of readers.