From the back of the book:
"The Romulan Ship Recognition Manual is intended for Star Fleet personnel with a "need to know" concerning information on the Romulan Star Navy. This comprehensive study discloses, for the first time, all known combat, visual, and historical data on 40 different Romulan ships and their variants. Also included is a chronology of service and silhouette recognition chart. This manual is a must all Star Trek enthusiasts.
Shown on the cover is a cutaway view of the Whitewind cruiser."