Instruct: Classify Amazon reviews into positive or negative sentiment
Query: His best ... ever?

You never know what Ryman is going to do next. The Child Garden is an SF classic - Was is a superb mainstream novel (well, as mainstream as Ryman does) - 253 is experimental in the best sense of the word, and in my opinion one of the most moving books of the 1990s - Lust is ... uncategorisable. So you pick up Air not knowing quite what to expect. Set in a fictional "stan" where the isolated villagers face the imposition of world e-culture feeding straight to the head, Ryman uses the underlying SF tropes with characterstic lightness of touch to tell a story about the way that people use their lives, and use others' lives.It is a truly brilliant book. It may even be better than the Child Garden - and Was - and 253. And that's not something I ever expected to write.Buy it.