Waterloo by Tim Clayton.

[Oldbones]

Just read this book, the kindle version, not expensive. First book I have read all the way through for a long time.
 So if you have any interest in this battle and the lead up to and the aftermath of the event, it is well worth a look.
Lots  of personal accounts and facts that are often missed in the general TV documentary's or you tube versions.
I could see me reading it again in a year or so.
Good book.