Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very promising - both the tool and the book

Although I've just started reading the book ( first 5 chapters ) it already impressed me with intensive depth the author covers all related topics. Sure, Expect is great ( and thank's for this tool, Don ! ) but this book isn't only about Expect - it's about almost *everything* you'll ever need to program interactive scripts using Expect. It talks about Tcl, zombies in UNIX, regular expressions ( really *in depth* talk ), "\r\n" vs "\r" and "\n" and hell knows what else ( fortunately, I have many more to read ) ! It reminds me the "Data munging with Perl" collecting the vast collection of data processing techniques using Perl.A pleasure to read. Don is a professional and experienced programmer and a nice writer. After I finish it I'll probably have even more to say ..