Band of Brothers, by Stephen E. Ambrose, is a great non-fictional account of Easy Company, the 506th Parachute Infantry Regiment, during World War II. The book follows the men of E Co. from the boot camps to Normandy to the end of the war in Europe.
Aside from a few of the factual inconsistencies this is a great book that peers into the lives and trials that these men underwent during one of the most epic wars of the modern day. Sometimes it feels like being right there with the men, sitting in a foxhole in the cold winter in Bastogne.
Many people have seen the miniseries that was developed from this book and should pick this up right away and jump right in. The miniseries was wonderfully done but the book, like always, is full of more concrete fact and has a larger scale and perspective. The book isn't as personal as the miniseries but it still feels like the reader gets to know the people that made Easy Company what it was.
I've read this book three times through and have loved it every time. A great read for any WWII buff.