Uniforms of the German Soldier: An Illustrated History from 1870 to the end of World War I.
A very nicely presented hardbound collection of many photographs with informative captions.
The Introduction provides a historical summary of the evolution of German military costume. The illustrations are divided into three sections: pre-war; colonial and overseas uniforms; and World War I. There is an extensive Bibliography and a German glossary.
The book includes a small section of colored and colorized portraits, but the uniform plates in the appendices are, disappointingly, in shades of grey, as well as being reproduced two to a page, which makes it difficult to distinguish the finer details that would be necessary to help identify photographs one may encounter during other research.
It was of limited utility for me as an amateur seeking to learn more about the photo of the young German that appears in the right sidebar of this blog (in which the shoulder boards, buttons and cuffs are difficult to see, and the accompanying scrawl is illegible even to the Germans who have looked at it).
Although no substitute for consultation with an expert when confronted with difficult identification cases, this book still makes a good addition to a research library.