My list as of right now:

Harry Potter - J. K. Rowling
Dragon Age - All Media Types
Buffy the Vampire Slayer
Discworld - Terry Pratchett
His Dark Materials - Philip Pullman
Vorkosigan Saga - Lois McMaster Bujold
Hamilton - Miranda
Ender Series - Orson Scott Card

I might swap that last one out, but dammit, I want Battle School.