"The Battle of Barrosa 1811" is a book written by John Grehan & Martin Mace, published by Pen & Sword in 2010. It delves into the military history of the Battle of Barrosa, which took place in 1811. The book is written in English, making it accessible to a wide audience interested in military history and historical events from the early 19th century. With detailed insights and analysis, this book provides a valuable addition to the literature on this specific battle and the broader context of military history during that time period.