Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Wading through the typos

This book does have a fair coverage of the various topics required for the Cisco exam, but is absolutely riddled with typos, inconsistencies and downright errors. A single thorough editing would have cleared up the vast majority of these problems.I had to augment the book information with other information, including another 640-604 book, web information, etc. before I felt comfortable with the covered material.