(Trouble on) Triton, by Samuel Delaney. I read a lot of sf in my early teens (in the late 70s), all the classic space-ship stuff, this was one of the first that in a very real way brushed all that aside and exposed more about individual values, by following a protagonist who really wasn't admirable. If you aren't just looking to excite yourself about the amazing possibilities of science and advantage, it's highly recommended.
Cool seeing his name. I grew up about 3 blocks from him and his daughter Iva (he was gay and had Iva with a lesbian poet (actually think they were married, not sure if it was just an arrangement though)). Iva was my best friend when I was pre-school age, fwiw :).
Have a lot of great memories of him and his daughter. Now that I have young kids of my own, every so often something reminds me of those days.
