This is one for the real SF nerds. It's a collection of articles, framed around reviews but giving more opinion on what makes a good science fiction story than would be common in a review, written by James Blish in the late 50s and early 60s. Fairly obscure stuff, admittedly - I've only heard of about 10 per cent of the stories and half the authors mentioned - but it is still interesting both from the insights Blish (writing as William Atheling Jr.) gives and from the sheer vitriol he pours on stories he doesn't like, even from revered names such as Asimov and Bradbury. Part of the usefulness to would-be writers of science fiction is that Blish underlines some of the pitfalls they face, whether they be basic writing errors (he tears into a couple of newish authors for the wild variety of alternatives to 'said' they use in reporting dialogue, a classic beginner's mistake) or problems that are specific to the SF genre. The only one of Blish's complaints I woul