Carrie's story is one of transformation and struggle. As she navigates the challenges of urban life, she encounters a variety of characters, each representing different facets of society. Her relationships with men, particularly George Hurstwood and Charlie Drouet, highlight the societal pressures and moral dilemmas faced by women during that era.

Dreiser's narrative style is characterized by its realism and attention to detail. He delves into the inner thoughts and emotions of his characters, providing readers with a vivid portrayal of their struggles and aspirations. The novel does not offer easy solutions or clear-cut endings, reflecting the harsh realities of life and the often ambiguous nature of success.

Through Carrie's experiences, Dreiser critiques the materialistic values of the time and questions the validity of the American Dream. The novel suggests that true fulfillment cannot be found solely through wealth and status, but rather through meaningful connections and personal integrity.

In essence, "Sister Carrie" remains a timeless piece of literature that continues to resonate with readers today. Its exploration of themes such as ambition, morality, and the pursuit of happiness ensures its place as a significant work in American literary history.