Jeff D. Eberle is an author, photographer, and amateur historian. Over thirty years ago, at the age of twelve, he began collecting militaria, with a special emphasis on authentic World War II photographs. The main areas of focus of his collection are images from the Eastern Front and images depicting small arms in use. Over the last three decades, his photo collection has grown to number in the thousands. As well as collecting, Eberle also deals in, appraises, and authenticates wartime photographs. The author was born, raised, and lives in Colorado.