Instruct: Classify Amazon reviews into positive or negative sentiment
Query: If you had to choose just one book, this would be a great one!

I've had this book for some time and I always come back to it- it's great for history, ideas, coordination- everything. I mainly play jazz/funk and some blues. I find the grooves in this books useful on many levels. They are great for interedependence work outs, great for post bop type grooves, and just great fun to play. There are so many good ideas and great info here I really consider this a must have. I tend to work out of Jazz/Bop books (Art of Bop, Jazz Mesages, Beyond Bob, etc.), Technique books, Funk Books (Code of Funk, Funk Drumming by Mike Clark), or work on latin/world grooves- I find this book covers everything I love about practicing from each of those types of books (if that makes sense). Anyway, buy it- you'll love it. Royal Hartigan seems VERY knowledgable and he seems like a wonderful guy. You can find some videos of him on the Vic Firth site (the education part) and probably on you tube- definitely worth checking out!