Real Senior Moment and a Book About the Iraq War

I just had a real senior moment about a book about PTSD. The book, Thank You For Your Service by David Finkel will be released soon as a movie.  Here's the trailer: 

On Thursday of this week, I was talking the professor in a writing class I am taking. He asked if I read much about the Iraq War then mentioned the book Thank You For Your Service.  I wrote down the title. 

But 20 minutes later, I realized the book sounded very familiar.  Three years ago, I read the book.  Worse still, I reviewed the book for Books and Culture. The review is here. So I wrote back to the professor with proof positive I am 64 years old! 

It is a good book about the worst parts of service in Iraq.