"Collapse" is an exploration of why certain societies throughout history have thrived while others have deteriorated and collapsed. The book delves into environmental problems, climate change, rapid population growth, and unwise political decisions as factors that contribute to the downfall of a civilization. The author uses examples from history such as the Mayans, the Vikings in Greenland, and modern examples like Rwanda and Haiti, to illustrate his points. It serves as both a historical analysis and a warning for modern societies to learn from the past in order to avoid a similar fate.

"Son of the Morning Star" is a richly detailed historical account that explores the complex figure of General George Armstrong Custer, from his heroic exploits to his infamous demise at the Battle of Little Bighorn. The book delves into the broader context of the American Indian Wars, providing a multifaceted perspective that includes the viewpoints of Native Americans and other military figures. Through meticulous research and engaging narrative, the book paints a vivid picture of the late 19th-century American frontier, the cultural conflicts between the U.S. Army and Native American tribes, and the personal and political dynamics that led to one of America's most legendary battles.