Off the top of my head:
His Dark Materials Trilogy - Philip Pullman
Eragon - Christopher Paolini
The Harry Potter series - JK Rowling
The Chronicles of Narnia - CS Lewis
The Name of the Wind - Patrick Rothfuss
The Bartimaeus Trilogy - Jonathan Stroud
American Gods - Neil Gaiman
Neverwhere - Neil Gaiman
The Colour of Magic - Terry Pratchett
Good Omens - Neil Gaiman and Terry Pratchett
Artemis Fowl - Eoin Colfer
Inkheart - Cornelia Funke
Ironside - Holly Black
Perdido Street Station - China Mieville
The Time Traveler’s Wife - Audrey Niffenegger
Something Wicked This Way Comes - Ray Bradbury
Interview with the Vampire - Anne Rice
The Metamorphosis - Franz Kafka
Last, but not the least, The Lord of the Rings - JRR Tolkien
gardens of ga hoole! ok you my say that is a little too young for me. trust me it is NOT when you get up to say..... book 5 you will think it is very good. mabe even befor then. I love the book. hope you wil too.
What kind of Fantasy do you like?
Jim Butcher is really good - The Dresden Files and Codex Alera
George R.R. Martin - A Song of Ice and Fire series
Anne McCaffrey - Dragonriders of Pern
Robert Asprin - Myth Adventure series (total silliness!)
And so much more!!!
You have to read 'The Secret Ministry Of Frost'!The most amazing book I've ever read!!!Another very good series is 'Skammern's Datter' and if you like dark fantasy 'Dracula' is a very good choice too.