This is the 2nd edition: there's a new edition out now. http://www.amazon.com/Essentials-Programming-Languages-Daniel-Friedman/dp/0262062798/ref=pd_bbs_sr_1?ie=

This is the 2nd edition: there's a new edition out now. http://www.amazon.com/Essentials-Programming-Languages-Daniel-Friedman/dp/0262062798/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1226754604&sr=8-1 http://www.amazon.com/Essentials-Programming-Languages-Danie... I have no idea what's changed.