There are Penguin guides, a great BBC guide, and an NPR guide that covers the basics, but before buying take a look at these sites. I find them pretty helpful.
http://www.classical.net/music/welcome.html
http://music.pauljames.de/music.html
The latter concentrates on 20th century classical music.
Enjoy,
Ev
http://www.classical.net/music/welcome.html
http://music.pauljames.de/music.html
The latter concentrates on 20th century classical music.
Enjoy,
Ev