Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A managerial overview of agile methodologies

A complete overview of the most important agile methodologies available. The authors have done a great job gathering, analyzing and summarizing the most important facts concerning XP, Scrum, Evo and UP. You will be told about pros and cons, success factors, risks to consider and implementation flavors (common customized implementation practices). Just don't get confused about the purpose of the book, because you won't be able to implement the methodologies just by reading it. You'll be into a better position to take a more informed decision about the methodology that best fits your development team. For the implementation process you'll surely need extra references focused on each specific methology.