I am so impressed with Mr. Bortolotti's research, both in the history of this magnificent beast, and the science behind knowing it. He sought out what appears to be everyone of any significance in blue whale research and spends time learning about their specialties, methods, and results. He also shows how these compliment the work of others. This takes time and patience, and is appreciated. I also appreciate his balanced perspective, never coming across as an alarmist, but not uncorking the champagne to celebrate population increases either (due, in part, to political reasons, like Japan itching at the bit to begin a full-fledged whaling program again). The chapters on the Whaling Industry are truly heartbreaking-- I made myself read through that tragic part of the great blue's history in one sitting, so that when I returned to the book, I would start a new day on a better note. And there are many wonderful studies that cheer one's soul after that. The understanding of these mysterious creatures is painstakingly slow business, but so worth it. Thank you, Mr. Bortolotti, for taking the time to write a thorough, accurate book, and writing in such a way that not only makes hard science comprehensible, but thoroughly engrossing as well.