“employing unsentimental storytelling, reportage, social statistics and the latest advances in flash photography.” The book was groundbreaking because it was able to get its message to the reader in new and impactful ways that had hardly ever been done before. Riis was able to establish his stance on social change due to his extensive investigative reporting. Muckraking was a leading cause of governmental reform as it dealt with uncovering social and political corruption. It undermined the power