For me, nothing screams Dungeons & Dragons more than the Monster Manual. This is my favorite book with pretty much every edition that comes out, and that holds true so far with this fifth edition of Dungeons & Dragons as well. There are so many different things that go into a fantasy world, from the different races, magical artifacts, unique lands and the use of spells. However, the monsters (both good and bad) are what make the setting come to life and is both fun to simply peruse but essential for adding flavor to a campaign.
