Instruct: Classify Amazon reviews into positive or negative sentiment
Query: WARNING - This book is completely useless for current technology

Zero stars is my actual rating!This book "GNU Autoconf, Automake, and Libtool" should come with the above WARNING.I bought this book expecting some solutions. Zilch!$30+ in the trash can.My advice: don't waste your money and time like I did.The book publisher bears some responsibility for continuing to print this useless book.I've been waiting for the new John Calcote book to be released. The release date keeps changing.