Hi clouds.
If you like Hermann Hesse you might also like Paulo Coelho's books.
Over the years I've found some really great online libraries. Heaps of them these days. Here are just a few.

http://www.readprint.com/
Numerous authors

http://emerson.thefreelibrary.com/
Emerson

http://www.shakespeare-online.com/
Shakespeare

This is a site you might enjoy although you may have seen it before.
http://www.bl.uk/
British Library

http://www.bl.uk/onlinegallery/ttp/ttpbooks.html
Online gallery from British Library where you can browse and look at the details of original books. It's really neat.