The progressive era was a period of social activism and political reform across the United States, from the 1890s to 1920s. The main objective of the progressive movement was to get rid of corruption in government. The movement primarily targeted political machines and their bosses. Lawmakers were influenced by muckrakers, like Ida Tarbell, prompted trust-busting law suits and legislation aimed at lessening the hold of monopolies and trust. Muckraking was an effective tool reform society because it showed he public pictures of most Americans living situations, because of this people started building settlement houses (Jane Addams).In Upton Sinclai’s novel ‘The Jungle’ it exposed the poor working conditions of meat-packing industry. He said “There would be meat that had tumbled out on the floor, in the dirt and sawdust, where the workers had tramped and spit uncounted billions of consumption (tuberculosis) germs. There would be meat stored in great piles in rooms; … and thousands of rats would race about on it…” The publication of “The Jungle” by Upton Sinclair lead to reform, regulations, laws, and overall improvement of the meatpacking industry. Also, as a result of his book, Congress passed the Pure Food and Drug Act and the Meat Inspection Act.In the novel ‘The Bitter Cry of the Children’ he wrote about the unfair treatment of children used as child labor. He stressed better education, better schools and teachers. He argued that the children of working mothers living in poverty, alike the children themselves, who worked in the mills and mines were suffering. They were underfed, ill-clothed, and exposed to danger and disease. John suggested that mother’s and children needed better medical care, neighborhood nurseries, pure milk and baby food, and better education about nutrition and health. The Bitter Cry of the Children made many people see the evils of child labor.In 1908, Ray Stannard Baker produced a series of five articles on the plight og the African Americans. In this pioneering work in the study of race relations in the United States, Baker dealt with issues such as political leadership, Jim Crow laws, lynching, and poverty. The articles turned into the book, Following the Color Line.They all were muckrakers and wanted to reform society. Upton Sinclair helped pass the Pure Food and Drug Act and the Meat Inspection Act, John Spargo exposed child labor and Ray Stannard Baker brought attention to political leadership, Jim Crow laws, lynching, and poverty. Muckraking was an effective tool to reform society because it showed the public pictures of most americans living situations.