Inspiration

J.K. Rowling's Wizarding World

 * Harry Potter and the Philosopher's Stone (Novel)
 * Harry Potter and the Chamber of Secrets (Novel)
 * Harry Potter and the Prisoner of Azkaban (Novel)
 * Harry Potter and the Goblet of Fire (Novel)
 * Harry Potter and the Order of the Phoenix (Novel)
 * Harry Potter and the Half-Blood Prince (Novel)
 * Harry Potter and the Deathly Hallows (Novel)
 * Harry Potter and the Cursed Child (Play)
 * Fantastic Beasts and Where to Find Them (Screenplay)

J.R.R. Tolkien's Middle-Earth

 * The Hobbit (Novel)
 * The Fellowship of the Ring (Novel)
 * The Two Towers (Novel)
 * The Return of the King (Novel)
 * The Silmarillion (Collection)

Phillip Pullman's His Dark Materials

 * Northen Lights/The Golden Compass (Novel)
 * The Subtle Knife (Novel)
 * The Amber Spyglass (Novel)

George R.R Martin's A Song of Fire and Ice

 * A Game of Thrones (Novel)
 * A Clash of Kings (Novel)
 * A Storm of Swords (Novel)
 * A Feast for Crows (Novel)
 * A Dance with Dragons (Novel)
 * The Winds of Winter (Novel, yet to be published)
 * A Dream of Spring (Novel, yet to be published)

Game of Thrones (HBO)
Neverwhere (BBC)