content generator: cult books

I shamelessly stole this from firecat

The Telegraph published a list of the 50 best cult books. They don't really define "cult" other than to say they know it when they see it.

In response, Nisi Shawl and Nin Harris created an alternative and suplimentary list of
Best Cult Books. Nisi provides the following definition for the books she chose;

Cult books are, by my definition, books that introduce the reader to a culture, a group of people who share values delineated by the book. Such books may be big seller or underground hits passed along via loans, but they have an impact beyond that of run-of-the-mill works. And they draw people in rather than merely preaching to the choir: they convert readers into believers.

They also provide their reasons for including each book, so check out the list on their blog if you're trying to figure out why a specific book is on the list.

( Ones I've read are in italics )

My reading seems to be pretty evenly split between both lists.

Somebody else suggested that Stranger In a Strange Land ought to be on there - I can buy that, it did start a religion.

I'm actually surprised Lord of The Rings isn't on there - it's on every other bloody list.

So suggestions? What would you add? For me it would the Dispossessed by Ursula K. Le Guin. It changed my entire way of thinking.