Just bought this book and am amazed with the content and how candid it is. I have a few books like this, and this is the best of its kind - not stuffy and very clear. Apparently, this is a companion to a web site but I better not say which due to strict Amazon rules on that stuff. I have already used this book to good effect and shown two American colleagues how to use apostrophes and terminated a rather ugly argument with my sister that has rumbled on for the past twenty five years. She now knows where her colon is, er, supposed to be. This book should be issued to everyone in school today. My personal peeves are: there and their, where and were, and also to and too, but now I have dozens more. If you wanna improve your grammar and you wanna hear it straight, buy this book. It's real horror-show! (Clockwork Orange reference. You either get it or you don't - sorry)