It includes general books on writing, and also has many titles of specific interest to writers of science fiction and fantasy. But I've stopped where I was, to protest Amazon's reprehensible practice of selling used books in a way that denies the author royalty income from the sale of a new book. Please join me in boycotting Amazon until the company ends this unacceptable practice.
Many booksellers offer a discount.
E.D. Hirsch, Jr., et al. The New Fowler's Modern English Usage R.W. Burchfield, ed. The New Synthesis Edward 0.