Stardust is written by Neil GaimanNeil Gaiman wrote Neverwhere. Neverwhere has genre Science FictionScience Fiction has examples: Unwind
[Human]: Do you know if Stardust is a book or some fancy dessert? [Assistant]: Stardust is a book written by Neil Gaiman, released in 1999. He also wrote The Sandman:Overture. Have you heard of that one? [Human]: I haven't.  Can you tell me anything more about it?   [Assistant]: It's a series by that author that also includes Endless Nights and Dream Country. Are you a fan of sci-fi? [Human]: I do.  I watched a good book recently called Neverwhere.  I think that was Sci FI. 
If you liked Neverwhere, you might also enjoy The Chronicles of Narnia and Harry Potter and the Sorcerer's Stone.