<p>No offense, but isn’t it ironic that the 2 users (except Silverturtle) who have handed out recommendations for this book and that book have made grammatical errors in their posts, not to mention typos?</p>
<p>I didn’t buy a standalone Grammar book, but I was satisfied by the tips and strategies mentioned in the Kaplan book I used. You can also try Silverturtle’s Guide. A lot of the users here praise it.</p>