Last year, there was a television adaptation of The Turn of the Screw by Henry James and thus there followed much discussion of its horror and psychological twists. Well, what more reason do you need to read a book?
I struggled with the language. This was a surprise. I read the odd classic and although it takes a few pages to get into the rhythm of the writing, usually I find that it is perfectly clear once you get used to it. Perhaps it's because the classics I tend to read are by English authors - Dickens, Hardy, Austen - and James is American. I wondered if the reason I was finding it hard to get to grips with was because it was an American classic and the language was subtly different to English literature of the same era.
What I found really frustrating was that I didn't know what was going on. Things weren't spelt out. There were coded references to socially unacceptable behaviour, which to me could have meant all sorts of horrors. Some people find that leaving things to the imagination makes it more scary. Not me. I can imagine a lot of things and not being able to choose which is the thing being described (because there aren't enough clues to nail it down to one thing) is frustrating. It certainly underlines my belief that detail is what convinces in fiction. For me, the horror was reduced by the vagueness and ambiguity, not increased.
My non-fiction book was Word Painting: A Guide to Writing More Descriptively by Rebecca McClanahan. It was excellent, full of good advice, good examples and lots of things to try out in my work-in-progress.