Literature and Writings that Changed My Perception of Reality (With Links So You can Read Them Too)

By George Orwell:

Animal Farm

1984

You can read these books for free online, as well as everything George Orwell published here:  http://www.george-orwell.org/

By Ayn Rand:

Anthem

Atlas Shurgged

You can read these books for free online here.

Farenheit 451 by Ray Bradbury

You can read this book free online here.

Lord of the Flies by Wiliam Golding

You can read this book free online here.

Two Treatises of Government by John Locke

You can read this essay free online here.

Common Sense by Thomas Paine

You can read this essay free online here.

The Theological Works of Thomas Paine

You can read this essay free online here.

The Autobiography of Benjamin Franklin

You can read this book free online here.

I've read much more than what's listed, but these are the works that had an impact on my thinking and perceptions of reality.  I hope you'll enjoy them.  Feel free to share what literature has changed your thinking in the comments.