One of the classic accounts of the battle of Stalingrad. While the Kindle version was published in 2015, the book originally game out in 1973 after the author won enough money on a TV game show to quit his job and start writing.
The book essentially consists of accounts of various individuals--Russian, German, Italian--about their experiences in the battle. The author interviewed many survivors of the battle and the stories are fascinating. The book offers a much better understanding of the battle from the Russian perspective than most books, which are either from the German perspective or very dry accounts of unit movements, casualties, etc. Some of the accounts in this book are unforgettable--the Soviet commander that shelled his own supply depot for cutting his vodka rations, another Soviet commander that decimated (in the Roman sense) his own unit after its poor performance in battle. Likewise, the book quotes many of the back-and-forth telegraphic conversations between Paulus and Manstein, etc.
While the book offers a basic overall account of the Stalingrad campaign, this might not be the best book for that, but this book is unbeatable for an understanding of what the combatants (and non-combatants) of all sides experienced during the battle.