Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Essential reference

This is the descendant of the Guinness chart books and contains, for the first time ever, singles and albums (and EPs from a separate chart) together in one volume. Each artist has his/her/their singles, EPs, and albums listed in chronological order along with label, chart debut date, peak, and weeks on chart. Each re-entry onto the chart is noted separately. The index of titles is comprehensive and there is, of course, a chronological recap of number ones. Trivia fanatics will miss the pages of chart oddities that appeared at the back of the Guinness books, but that's a small quibble, since much chart trivia has been stuffed into the main listings (notes under the chart titles, etc.). An essential reference.