It is quite clear that more than ever people are enjoying audio books on CD and MP3 audio book downloads. These "books on tape," as they used to be called, are great tools for helping people to make better use of their time. No matter what format they are looking for during their audio book shopping, some people might do a double take when they see two listing for the book they are interested in and discover they can choose from an abridged version or an unabridged audio book version.

There are many people who don't realized that they might want to look for the unabridged audio book version when they were buying a new audio book, but had simply bought whatever was featured or listed as the most popular for that particular title. In fact, a very good percentage of all audio books on the shelves of bookstores or available as audio book downloads are actually the abridged version and many people purchase them without even realizing that fact. Still, the question remains, what is the real difference between the two types of audio books on sale?

An unabridged audio book will contain a word for word recording of the whole book, as published by the author. Abridged audio book volumes, however, have been edited. Sometimes these edited, or abridged versions, are done by the author, or with their guidance, while in other instances the publisher who bought the rights to the work will edit it as they please.

What this means is that an abridged work, whether in the form of a printed book, an electronic ebook, or an audio book on CD or MP3, does not contain the complete and original work of the author. An unabridged audio book, on the other hand, will be read by the author or by a voice-over artist and every single word in the volume will be recorded as the audio book. Therefore, the unabridged version will be as close to the original message and intent of the author as one can possibly get without inviting the author over for a personal reading.

This may bring up the question, why would anyone buy anything except an unabridged audio book? There are many reasons for this, but the primary reason is to make the recording shorter. This allows the listener to listen to the audio book in less time and when dealing with very long tomes, this can be a great benefit if time is short and if the listener simply wants to be able to get the gist or the highlights of the book by listening to a shortened audio version.

One reason people seek out the shorter, abridged versions of audio books on CD is so that they can use them as a review of material that they have already read. This can be helpful to students preparing for exams, or to a business man preparing for a presentation based on a certain book, or even just to enjoy a quick refresher of a favorite novel.

But, there are a lot of people who simply feel that they are going to miss an element of the original that is important to understanding the full story, if they get the abridged recording. In that case, the unabridged audio book will be the better choice and will help the listener to relax and simply soak in the recording with the assurance that they are not missing a thing.