Controversial Thesis: The book is known for its controversial claim that Hitler was homosexual, suggesting that his sexual orientation played a significant role in shaping his personality and decisions.

Sexuality as a Motivator: Machtan may argue that Hitler's sexuality influenced his political decisions, relationships, and interactions with others.

Historical Revisionism: The book may be seen as an example of historical revisionism, challenging traditional narratives about Hitler's life and motivations.

Impact on Nazi Germany: Machtan might explore how Hitler's alleged homosexuality affected the power dynamics within the Nazi regime and its impact on policies.

Personal Relationships: Expect discussions about Hitler's personal relationships and connections, particularly those that Machtan believes support his thesis.

Evidence and Sources: The book likely presents evidence and sources that Machtan used to support his argument, which could include historical documents, letters, and other materials.

Reception and Criticism: Look for information on how the book was received by historians, scholars, and the general public, including any criticism or challenges to Machtan's thesis.

Historical Context: The author may provide historical context to help readers understand the societal attitudes towards homosexuality during Hitler's time and how it might have influenced his actions.

Biographical Exploration: "The Hidden Hitler" might offer a biographical exploration of Hitler's life, focusing on aspects that Machtan considers relevant to his argument.

Broader Implications: The book could discuss the broader implications of its thesis on the understanding of Hitler's character and the events of World War II.