Books on "How to write effectively" ?

Here are a few books on techniques of English writing that you might find helpful:

1.  "The Elements of Style" by William Strunk Jr. and E.B. White - This classic guide to English style and usage is a must-read for anyone looking to improve their writing skills. It covers topics such as sentence structure, word choice, and punctuation, and offers concise and practical advice on how to write clearly and effectively.

2.  "On Writing Well" by William Zinsser - This book is a comprehensive guide to nonfiction writing, covering everything from the basics of grammar and style to more advanced topics like voice and structure. It's a great resource for writers of all levels.

3. "The Sense of Style" by Steven Pinker - In this book, linguist and cognitive scientist Steven Pinker offers a fresh perspective on the art of writing, showing how an understanding of the way the mind works can help writers craft more effective and engaging prose.

4.  "The Writer's Digest Handbook of Novel Writing" by the Editors of Writer's Digest - This handbook is a great resource for writers looking to improve their skills in fiction writing. It covers everything from developing characters and plotting to finding inspiration and revising your work. I hope these suggestions are helpful! Let me know if you have any other questions.