Unabridged means you will hear the entire book, just like the printed version. Abridged means you will only hear a condensed version of the book (not all chapters are included.) The most comprehensive version, by far, is the unabridged version, as it covers all of the GTD content. The abridged version is more like the "Cliff Notes" summary of the key concepts and does not go into detail on the implementation phase.

We appreciate when customers let us know about errors in the international versions of Getting Things Done. We are not involved in the translation of David's books, but we will pass along the feedback to his publisher, Penguin Group, who handles the translation process. You can also give Penguin Group the feedback directly through their website.