I would also agree with that assessment of the Ospreys. However, the more you learn on the different military history subjects, the more critical you become and the less valuable a good portion of the Ospreys become. There are some that are near-worthless, but then again, those written with care and excellent research, such as Rene Chartrand's, are very valuable.

Unfortunately, they were not allowed as references when I was in grad school for the papers that were assigned, and that was too bad as that attitude did waste some valuable material.