This book is about 10 years old now, but I regard it as one of the better books on its complicated matter. However, it would be nice to see an updated version of it.
Although its size, I would love it more if there was as much attention to the theory of mergers, arbitrage, corporate governance... as there is attention to empirical evidence from academic papers. Also some things are just wrong. For example: a company that buys back stock won't trade at its previous price-to-earnings ratio! Earnings per share will improve, but the stock price stays the same, naturally (ceteris paribus). This is something that was overloooked by the authors, by assuming a stable P/E ratio.
But in general a great read!