Books for Teens

Literary Compass has an annotated list of must-reads here.

This is their book list with the ones I've read in bold print:

Fantasy/Horror

* Anything by Ray Bradbury

o Something Wicked This Way Comes
o Dandelion Wine
o The Martian Chronicles
o Fahrenheit 451
o The Illustrated Man

* Tarzan of the Apes by Edgar Rice Burroughs
* The Belgariad by David Eddings
* Animal Farm by George Orwell
* The Once and Future King by T.H. White
* The Book of the Dun Cow by Walter Wangerin, Jr.

Science Fiction

* Flatland by Edwin Abbott
* The Foundation Series by Isaac Asimov
* The Caves of Steel by Isaac Asimov
* Ender's Game by Orson Scott Card
* The Lost World by Sir Arthur Conan Doyle
* Time and Again by Jack Finney

Historical

* The Killer Angels by Michael Shaara
* The Three Musketeers by Alexandre Dumas
* Mr. Midshipman Easy by Captain Frederick Marryat
* Ivanhoe by Sir Walter Scott

Mysteries

* The Father Brown stories by G. K. Chesterton
* Anything by Agatha Christie, "especially the novels featuring Hercule Poirot" (I've read a few Christie novels)
* The Brother Cadfael series by Ellis Peters

Assorted other titles:

* Captains Courageous by Rudyard Kipling
* To Kill a Mockingbird by Harper Lee
* The Ox-bow Incident by Walter Van Tilburg Clark
* Hondo by Louis L'Amour
* Shane by Jack Schaefer
* Hiroshima by John Hersey
* All Creatures Great and Small by James Herriot

HT: SFSignal, where I find so many good things