I have a very short list of books that I'd put in the must-read category for every Christian, and this book is on it. Of course, there are many excellent books and many important books, but what sets The Atonement apart from many other worthwhile books is that I can recommend it to you and know that no matter who you are, you'll learn something valuable from it, and at the same time, you won't find it too difficult. It isn't pablum, but you won't need to keep a theological dictionary (or even a regular dictionary) nearby to use as you read. And it's short enough for those of you who do a page count first and automatically turn down anything over 250 pages. Yep, this book represents the best of all worlds: dense, but not difficult, and it doesn't drone on.
Leon Morris is more well-known for his scholarly tome The Apostolic Preaching of the Cross. It wouldn't be far wrong to think of The Atonement as the average person's version of The Apostolic Preaching of the Cross. It explains the terms associated with the atonement, words you've probably heard, like "justification" and "sacrifice" and "propitiation," but maybe never understood completely. And of course, understanding the meaning and significance of what was accomplished for us on the cross is one of the most important things for every Christian believer.