Some Science Fiction (also called scifi or SF if you search for it online) books I found on lists for people learning English: Hitchhiker's Guide to the Galaxy - Douglas Adams (the first book of a very funny scifi comedy series) Any short stories by Ray Bradbury - he does use some advanced vocabulary, though. Sometimes his stories are SF, but many are more like fantasy or even horror. Before you buy a book, you could look at "The Veldt" here http://www.veddma.com/veddma/Veldt.htm and "The Very Gentle Murders" here http://raybradbury.ru/library/story/94/2/0/ to get an idea. Please note that not all of his stories are this morbid! If you like high fantasy as well: The Lion, The Witch, and the Wardrobe, by C.S. Lewis (there are 7 books in the series, The Chronicles of Narnia. These books were written for children, but I first read them at age 17 and found them entertaining, and I have re-read them as an adult) I couldn't find many lists that were sorted by genre or subject. Here is one that has a lot of books listed, but I don't know if any would be interesting to you. One of the ones listed which I remember reading many years ago is The Forgotten Door, by Alexander Key, and that one is definitely SF. https://www.ccsf.edu/Library/instruct/eslintermed.pdf Hope this helps some!