At only 66 pages of main text, you might think this slim volume would make a quick read. Unless you know anything of Kant's writing style. As a thinker, he was careful with his logic so his arguments developed deliberately. This means that, given his assumptions, his points are generally sound. On the other hand, it leads to some rather dense and dreary prose. That doesn't, however, take away from my for star rating, and neither should it discourage you from picking up this wonderful volume. In these few pages Kant develops startling ideas about what we should do, how we decide what we should do, and how we should decide what we should do. His ideas were revolutionary to contemporary philosophy, and remain powerful to the modern (especially the post-modern) reader. Moreover, Kant's dusty academic tone is a poor disguise for the enthusiasm and optimism that abound here. While the Groundwork doesn't offer us salvation, it does offer us a chance for right action. And even if not all of his points have withstood the erosion of philosophical development, we should still reserve a place for Kant in our minds, and on our bookshelves.

I have to recommend the Cambridge edition pictured above. The translation is clear, and it begins with a detailed and readable introduction, which was important to my understanding of the main text.