The book delves deep into the biological significance of human buttocks, exploring how this distinctive anatomical feature played a crucial role in our species' development. Through interviews with evolutionary biologists and anthropologists, Radke demonstrates how our gluteal muscles enabled upright walking and running, fundamentally distinguishing humans from other primates and shaping our survival strategies.

Through examining various historical periods and cultural movements, the author reveals how the human buttocks have been consistently commodified and controlled by societal forces. From Victorian fashion standards to modern fitness trends like "Buns of Steel," the book demonstrates how commercial interests and social power structures have shaped our relationship with this body part.

The author expertly analyzes how perceptions of buttocks have intersected with race and gender throughout history, examining figures like Sarah Bartmann and contemporary icons like Jennifer Lopez. This analysis reveals how body features have been used to both oppress and empower, reflecting broader societal attitudes toward race, beauty, and identity.