For those who are interested in stealth airplanes I think this is a great little book. Lots of great pictures and a good brief history of the development of stealth airplanes at Lockheed. Its not really about any one airplane so if you wanted something specifc, you would probably be better off trying to buy an old copy of World Airpower Journal with an article written by Sweetman on one of the airplanes. If you wanted alot of info on the 117 or B-2, the book Black Jets is very good. And if you wanted more detail about the Skunk Works, check out the book by Ben Rich. Thats a fun read as well.