What are the best GUI Libraries are there for Linux?

[WriteGreatCode]

Edit: Wow epic fail on grammar in the title... hope you know what I mean... =/

The title says it all..

thanks.

[Athar]

The important ones are gtkmm and Qt. wxWidgets is also good, although less commonly used.

[Estee]

I personally prefer Qt.It is cross-platform and the documentation is really good.

Check out: http://doc.qt.nokia.com/4.7/index.html