international editions are printed on horrible paper and often have mistakes for who knows what reason. I would steer clear of them for the most part.<p>The first edition can be had for $10 on amazon. <a href="http:&#x2F;&#x2F;www.amazon.com&#x2F;gp&#x2F;offer-listing&#x2F;0201100886&#x2F;ref=dp_olp_used?ie=UTF8&amp;condition=used" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;gp&#x2F;offer-listing&#x2F;0201100886&#x2F;ref=dp_olp...</a>