In two sentences describe how Jacob Riis connects with the book The Jungle by Upton Sinclair

Jacob Riis, through his groundbreaking work "How the Other Half Lives," exposed the harsh living conditions of the urban poor, paralleling Upton Sinclair's "The Jungle," which unveiled the brutal realities of the meatpacking industry and workers' exploitation. Both authors aimed to raise public awareness and spur social reform by highlighting the struggles of marginalized communities in early 20th-century America.