This book provides you with everything you need to understand performance analytics. It's well written and very comprehensive. Some parts of this book might bore you this death, but performance analytics is boring to begin with (at least for me). There's so much to learn and little to apply especially if you use powerful and dynamic investemnt tools like bloomberg and factset which already have the capabilities to do attribution, contribution, return calculations, and tons of other functions without any need to see the underlying calculation methodology. I give this book 4 stars because it does not bring anything new to the table or any advanced topics on fixed income and hedge funds. However I highly recommend it to any person working in a performance analytics group.