After reading Dhalgren, this novel is just like summer beach reading. Not that it's easy, but for the most part the effort is worth it. One of the few SF books to deal with the relatively esoteric topic of language and how it defines us (which really seems to be a natural SF topic, being that they deal with aliens and stuff so much), something it sort of shares with Ian Watson's The Embedding. Delany however won a deserved Nebula for this book (actually he tied with Flowers for Algernon, also a fine book, but as different from this as can be), which probably wasn't at all what readers were expecting in 1966 when this was published. But who cares what the readers want, as long as it's good? And this is. As I mentioned before it's a mediation on how language defines us, both to ourselves and in relation to other people, all cloaked in a Space Opera type story. The Invaders (who are never really seen, weirdly enough, but I think they're human) are attacking the Alliance and are using a mysterious weapon called Babel-17. What is it? Nobody is really sure so the military recruits famous poet Rydra Wong to figure out what's going on. She has little idea either but has come closer than most people. What follows is layer upon layer of story as Ms Wong examines her own life as she tries to unravel the mystery of Babel-17, examining both the roots of language and doing her best not to get killed. Rydra is a rarity in SF, a three dimensional woman who stands on her own as a strong character who doesn't come across as an emotional maelstrom or an ice-cold witch. She's one of the most enjoyable and well-rounded characters to come down the pipeline in SF and there are very few characters since who can match up to her. Delany's story just a bit wacky toward the end and he makes up more than a few SF twists to explain the ending but the story holds together really well and it has brains and a soul underneath all the deep thinking. It's also very short, so all the people scared off by Dhalgren can come over here and see what the man can do in small doses. Then they can move on to the big stuff.