Instruct: Classify a given review into positive or negative sentiment.
Query: A must

This book, along with THT free website, is a seasonal "must have." The collection of stats itself is freely available on THT website, but - like Baseball Prospectus' annual - its presentation of those stats allows for easy reading on a team by team basis before and during the season. It also has articles that provide an indepth analysis of several of THT's own stats and other "on the edge" ideas about baseball analysis. If really forced to get only one such book each year, this one would make a strong argument to be that book.