Fantasy as a genre of literature refers to stories set in a fictional world that often contains magic, mythical creatures, and/or supernatural elements. The genre allows writers to create their own rules and universes, and the stories can range from light and whimsical to dark and complex. Fantasy can take many forms, including high fantasy, dark fantasy, contemporary fantasy, and more. In general, the fantasy genre offers readers a way to escape reality and enter a world filled with imagination and wonder. The stories often contain elements of adventure, magic, and supernatural creatures, and often explore themes such as good versus evil, power, and morality.