"Jane's" is probably the world's leading byword when it comes to information about ships especially, though not exclusively, ships of the world's navies. In this special edition of those warships which existed during WW1 we are treated to the full specifications of each vessel complete with the same information with regards to it's machinery and armament.
Each section (Navy) commences with waterline silhouette profiles of the entire fleet followed by individual classes of ships from biggest to smallest. For the vast majority of entries we have a detailed profile and deck view of each class of ship with all parts numbered and named. Additionally, in most cases the publishers have been able to include at least one photograph (often more than one) of each type of ship. However, the publishers do point out that some of these pictures are of an inferior quality but are included in the interests of completeness because no other pictures are available.
Various engineering and gunnery notes are also found in addition to more general information explaining the specific differences between various ships of the same class.
Altogether, typical 5 star material from an established publisher of high quality material.