Hovering between 4 and 5 stars on this one. I watched the documentary Blackfish around the same time I read this, so each sort of reinforced the other, making my overall intake of information more complete (but perhaps hazily combining both in my mind so that I can't tell where one started and the other stopped, or which one I actually got my information from). I would recommend both together; it provides a fuller picture, to actually see some of the footage Kirby discusses and interviews with people followed throughout the book. The book was gripping, the evidence compelling. I will let everyone draw their own conclusions, but I think anyone with the least concern or affection for whales should read this book.