For those who do not know, you can order a personally signed (to you) Tigers in The Mud book from Otto Carius himself, I received mine today from Germany. The book is the german version but its a neat book to have autographed to you personally, he is quite old so this opportunity won't be around too long. he also signed a picture of himself in the middle of the book.
http://www.tiger-apotheke.de/

What kind of reference material does the book include?

Here is a link to the book in English, I found this book a good read just be aware that it has been translated from German but still worth it if your interested in the work of a Heavy Panzer platoon in Russia

The book is more a memoir then a reference book, I read the english version a while ago and is one of my favoite reads, it also covers the end of the war with him as a jagdtiger commander.
I wanted the German edition with autogragh for my collection.