Here is a list of other works by Gerhard Kappner:
- "Die Deutschen und ihre östlichen Nachbarn" (The Germans and Their Eastern Neighbors)
- "Die Sowjetunion und ihre Satelliten" (The Soviet Union and Its Satellites)
- "Der Weg nach Europa" (The Way to Europe)
- "Die Zukunft Deutschlands" (The Future of Germany)
- "Die Geschichte Deutschlands von 1945 bis 1955" (The History of Germany from 1945 to 1955)
Kappner's writings often focused on the political and social developments in Germany and Europe during the Cold War era. He was known for his critical views on the Allied occupation of Germany and the division of the country, as well as his analysis of the geopolitical situation in Europe.