I want to know the answer to the following question:
The Green Book consisted of how many volumes?
All the background I'm provided with is that "During the early 1970s, Gaddafi formulated his own particular approach to Arab nationalism and socialism, known as Third International Theory, which has been described as a combination of "utopian socialism, Arab nationalism, and the Third World revolutionary theory that was in vogue at the time".". Is that enough to answer the question?