A book like
Hanafuda actually has a story, so it's easy to sum that up in a few sentences.
Other books however consist of 10-13 unrelated stories, which makes it harder to summarize without writing a sentence or two for each chapter. We could describe it in broader terms ("vanilla with big boobs"), but the tags already do that.
That being said, we should look into a way to add better (read: any) descriptions to our books.