[citizenpaul]

Blind sight has been recommended enough times so I'll add a note about the sequel.

Watts wrote a loosely related sequel called Echopraxia that was not nearly as good as Blindsight but expands on some of the concepts. It was much more of a slog to read through and a bit confusing to follow the story and I had to force myself to finish it. If you are thinking of picking that up after reading Blindsight.

Both books have a good section after the story where Watts explains the research and citations of how he came up with the story. If you read that part it may break your brain in a questioning existence kind of way.

[sershe]

Heh, +1 on Blindsight and also on the sequel not being as good :) I think Watts had remarked something like, people complained there was not enough action, so he added more action. But based on the comments I keep seeing (and Amazon stars) people like it much less...