What is the author's perspective in the memoir, Witness?

Chambers point of view is quite obvious. He explains why he becomes a Communist and why he breaks with Communism. He explains the reasons because he wants the reader to understand why people embraced Communism and why they broke with Communism. Communism seems to be a way to avoid war and economic crises. Economics crises are a part of capitalism and wars are often related to economic crises. Communism was seen as the solution to this problem for many who embraced it, most of who were students, intellectuals and many well-to-do's. Many were in the ranks of government.