Ceebee-eebee

This time I am looking for books about WWI. I'm fascinated by the realities of that war and would LOVE to read some good accounts of what it was actually like for the soldiers. I've got the politics and all that down, I've visited plenty of memorials and historical sites while I was in Europe oh so long ago now, but I don't feel like I have a strong grasp of what it was really like in the trenches. What it was like for the POWs. That kind of thing.

Anyone around here a war history buff? Got any recs for me?