I've struggled to read this text, since it contains many very recent results distilled into intelligently organized chapters. Unfortunately, even though this book is intended for a savvy audience, the text is often too detailed and technical, while important "big picture" intuition is never relayed. Frequent errors in the algorithms and proofs, ranging from simple subscript swaps to more subtle errors in logic to the (rarer) complete lack of logic make this a difficult book to recommend. In addition, the exercises are frequently too vague (sometimes meaningless) -- this book is definitely not recommended for class work.