Instruct: Classify the given review into positive or negative sentiment.
Query: disappointing

Disappointing-feel short of its potential. At best, this may be useful as an introduction or for pre-high school (which is its target). However, there are no maps and no charts, etc. The battle entries are very incomplete and not well organized. Additionally, the battle entries do not (generally) identify the campaign or conflicts in which they occurred. Additionally, the conclicts or campaigns have no comprehensive list of battles which occurred therein. The book provides certain facts but there is no attempt to help the reader organize those facts-so you get facts without proper context-a good encyclodedia should provide facts and context for those facts.