This is an excellent book, not just about the battle of Dobro Pole in 1918, but about Bulgaria in World War I. It is written more at the strategic level, explaining how Bulgaria's frusturations during the Balkan Wars before World War I shaped Bulgaria's war aims of regaining Macedonia and a portion of Romania. The book is based mostly on Bulgarian sources, both primary and secondary. The battle of Dobro Pole itself is not discussed until 3/4 the way into the book. What happened in the years from 1915 to 1918 had an impact on how the battle turned out, and the author makes those connections clear. The author's account of the actual battle is at the division/corps level. The book does a great job telling the story of Bulgaria in World War I, one that few in the English speaking world are familiar with.
I recommend this book to those who want to know more about Bulgaria's military history, the World War I campaign in Macedonia, and the history of the Balkans.