Fantasy fiction is a genre of literature that features magical elements, mythical creatures, and fantastical worlds. It often includes themes of heroism, adventure, and the battle between good and evil, drawing readers into imaginative realms where anything is possible. This genre encompasses a wide range of subgenres, including high fantasy, urban fantasy, and dark fantasy. Notable works include J.R.R. Tolkien's The Lord of the Rings and J.K. Rowling's Harry Potter series, which have captivated audiences and inspired countless adaptations in film and other media.