Books to strengthen the English language

Here are a few book recommendations that might help strengthen your English language skills:

1. "The Elements of Style" by William Strunk Jr. and E.B. White: This classic guide to writing covers the fundamentals of grammar, punctuation, and style, and is an excellent resource for improving your writing skills.

2. "The Oxford Dictionary of English" by Oxford University Press: This comprehensive dictionary is a great resource for looking up words and learning their meanings, as well as for improving your vocabulary.

3. "Grammar for Grown-ups" by Katie Hewat: This book is a fun and accessible guide to English grammar, and is designed for adults who want to improve their language skills.

4. "How to Write Better English" by Harry Bingham: This book provides practical advice and exercises for improving your writing skills, and covers topics such as grammar, punctuation, and vocabulary.

5. "The Sense of Style: The Thinking Person's Guide to Writing in the 21st Century" by Steven Pinker: This book is a guide to clear and effective writing, and covers the basics of grammar and style as well as the psychological factors that influence good writing.