Who was the author of "How the Other Half Lives," which exposed urban poverty?

The author of "How the Other Half Lives" is Jacob Riis, who was a Danish-American social reformer and journalist. His work, published in 1890, is notable for its detailed photographic documentation and vivid descriptions of life in the tenements of New York City. Riis aimed to highlight the harsh realities of urban poverty, child labor, and inadequate living conditions faced by the working-class population. By using both text and images, he sought to raise public awareness and promote social reform.

This book played a significant role in the Progressive Era, influencing policymakers and the general public about the need for housing and urban reforms. Riis’s work exemplifies the era's push towards social justice and improved living conditions for the impoverished urban populace.