I know a lot of sci-fi is turned into those new fangled moving images but I found an interesting list of sci fi books, many from way, way back in the day, which are described by the compiler as 'libertarian'. Some authors are obvious for including on any such list.

Some of the modern ones listed surprised me though . I am not sure they can really be seen as being sci-fi at all, i.e. Harry Potter?

http://www.nolanchart.com/article4700.html

It set me thinking though, who is writing the best sci-fi these days?