Instruct: Classify the given review into positive or negative sentiment.
Query: Excellent ! A book you will reference again and again.

I had ordered this book prior to publishing figuring it's about the only book I'd heard of, short of Govt listings, that compiled the information stated in the title. I was right. This is an exhaustive research/work masterpiece that will be invaluable in any military or aviation history buffs library. Losses are listed in chronological order with a where,who,why heading and description of action and outcome. The appendixes alone give an enlightening (and stunning) amount of information and cross reference of aircraft losses by type and weapon that downed it. Good job Mr. Hobson, this is a fine book!