Ask HN: What should I read next?

Dune is the best science fiction book ever written.

RiderOfGiraffes also suggested Snow Crash; both would be excellent choices.

Consider also "Snow Crash"

Read the Cryptonomicon. It's an awesome work of fiction, and it involves lots of geek interests.

... with an added emphasis on "Cryptonomicon".

I'd add to this Cryptonomicon, which is an interesting story, interesting thematic matter (relevant to software folks, and presented intelligently)

Read Hitchhikers Guide. Again. Priceless.

I bet he would like Ender's Game

I've always really enjoyed "The Soul of a New Machine"

The Discworld series (Terry Prachett) is good if you liked HHG

Anything by Terry Pratchett. There are a lot of books

"Anathem" by Neal Stephenson is the best book I've read in years.

"The Diamond Age"

Permutation City by Greg Egan

I just finished Accelerando by Stross which had lots of great ideas played out over the next several centuries.

Some come to mine are The Moon Is a Harsh Mistress