This is the best book to date about the shuttle. I refer to it several times per week when I need to answer questions from colleagues, the news media and the public.I also learn something every time I read it. Jenkins' fine use of editorial comment, facts, statistics and insider knowledge make it invaluable.I didn't think Jenkins could (or needed to) top the second edition of the book, but he did with the third.If you need the facts and more, buy this book!