Good book that you get engrossed in means you finish it quickly (plus it is a small paperback):

The Book is “Combat Swimmer: Memoirs of a Navy Seal” by Captain Robert A Gormly. A Now retired US Navy Seal Captain Gormly was a seal from an era I had not read much about. I have always had a fascination about Navy Seals ever since I first saw the Navy Seals movie (from back in the 80s, not GI Jane). The one thing you mostly read about these days are modern day seals, what you hardly read about is the history of the seals and where they first got their real taste of action. Vietnam. This was close enough.

Gormly was a seal from the Vietnam era so it was great to read up on how things happened back then. I really need to read some more on this war as it is fascinating to me on so many levels. It saw leaps and bounds improvements in war fare but yet was so close to modern war fare in the fact that they in some cases were fighting a more guerilla style war (like today with the Taliban in Afghanistan). It looks at the basic rudimentary technology and weapons they used back then compared to now and it was great.

Definately a good read for someone who is into this sort of thing.