Fantasy books are a genre of literature that features magical elements, mythical creatures, and imaginary worlds. These stories often include adventures, quests, and battles between good and evil. Popular themes in fantasy include heroism, friendship, and the struggle for power. Many fantasy books are set in unique settings, such as enchanted forests, ancient kingdoms, or distant planets. Notable examples of fantasy literature include J.R.R. Tolkien's The Lord of the Rings and J.K. Rowling's Harry Potter series. These works have captivated readers of all ages, transporting them to realms filled with wonder and imagination.