Politics and the English Language

George Orwell's essay remains a great guide to writing clear and concise English. I find it boosts my confidence just to read the passages quoted by Orwell near the beginning of the article, and count the number of negatives crammed into a single sentence by Harold Laski.
The essay is reprinted on the Libcom website:
http://libcom.org/library/politics-and-english-language-george-orwell