Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Book Above All Others

Elijah Wald has put together not only a wonderful testimony to Robert Johnson but has created an excellent introduction to the birth of the blues. After having enjoyed the read, I now have an excellent reference book to all the blues artists (and their songs) that I've known and many he introduced to me for the first time. Elijah's passion for the blues is very apparent and he has enhanced my blues passion all that much more. "Satisfied and tickled too"