This is one of the best quick-reference books for copywriting that you can have on your (digital) shelf.
Unless you’re an experienced writer, you might be surprised at how big of a difference seemingly small changes in wording can make. One word changed for the better in a headline can take an ad from dud to stud. One phrase, better worded, can mean the difference between little to no response and a healthy, profitable return on investment.
Whenever I’m writing copy, I have this book at my side, and it helps me to some degree EVERY time.