D-Day did not do it for me, I couldn't enjoy reading it. I felt for a small book, there was a lot of detail in there, and the storyline of Lieutenant Andy Pope was not very interesting. The way the synopsis describes the book was a lot different than the actual experience, which seemed boring and dry.
If this were a typical historical account, it would have gotten a different rating. However, given the fact that this is supposed to be a firsthand account from a fictional character's point of view of events during this historical event, you expect to become more invested and immersed in what was happening.
I found myself having to skim through some sections to get to the facts, because the story itself did not pull me in. There are definitely much better books out there in this series.