Though in truth it takes years of reading and re-reading to understand, once you do this book is a life changer. The Macquarrie & Robinson translation remains the definitive English translation of [a:Martin Heidegger|6191|Martin Heidegger|https://d202m5krfqbpi5.cloudfront.net/authors/1217243699p2/6191.jpg]'s Sein und Zeit. There are enough commentaries around, in particular [a:Hubert Dreyfus|30234|Hubert L. Dreyfus|https://d202m5krfqbpi5.cloudfront.net/authors/1330508777p2/30234.jpg]'s which offer good insight into the flaws of this translation which make Heidegger's meaning unrecognizable. Many of the commentaries and secondary works on Being and Time will refer to the standard pagination from this translation or the original German and therefore this translation, either in hardback or paperback is necessary for a serious study of Heidegger.