Here are a few recommendations to get you started: For beginners: "English Grammar for Dummies" by Geraldine Woods "The Official Dummy's Guide to Learning English" by Amy Gillett "1001 Ways to Improve Your English" by Norman Lewis For intermediate learners: "The Oxford Dictionary of English Grammar" by John Eastwood "Better English Pronunciation" by J.D. O'Connor "The Elements of Style" by William Strunk Jr. and E.B. White For advanced learners: "The Cambridge Encyclopedia of the English Language" by David Crystal.
