Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A true Sourcebook

All the titles from the 'ASTD Trainer's Sourcebook' series are excellent. These are books that provide the trainer with a comprehensive reference on the subject matter, ideas on activities and games, as well as other tools.For the beginning and advanced trainer alike, this is a wonderful and comprehensive book on teambuilding that can also be easily used by non-training professionals.