Instruct: Classify an Amazon review as either positive or negative.
Query: Without doubt, the most complete & authoritative work on Bix

This work is the result of decades of dedicated and exhaustive work by Phil Evans and his wife and will stand as the finest work on Bix. Phil's previous work was used extensively in the Sudhalter book, and this work is the result of all of that plus an extrordinary amount of newly discovered material, includeing many letters from Bix himself. Many previously unseen photos as well. Phil recently passed away, and I am eternally grateful to him for producing this excellent book on my great-uncle. If you could only have one book on Bix, this should be it!