1. English frequently asked questions dictionary. Author: Zhao. This book can be described in one sentence: This is my favorite, authoritative, detailed and useful grammar book. 2. Handbook of College English Grammar. Author: Zhang Chengyi. This book is a typical example of traditional grammar, but there are many examples, but the explanation is particularly simple and easy to understand, which is more suitable for students with general basics. 3. New English Grammar (Second Edition). Author: Zhang Keli. This book is the most orthodox and detailed grammar book I have ever seen. 4. Detailed explanation of common English grammar problems. Author: Zhao. Actually, this book is the same as the first one. The difference is that it is not written in the form of a dictionary, but in the form of a grammar system, which is more suitable for students who want to understand a grammar point systematically.