What is the author's perspective in the nonfiction book, The Warmth of Other Suns?

The Warmth of other Suns by Isabel Wilkerson is a non-fiction chronicle of the Great Migration – the movement of southern blacks away from the Jim Crow south to large urban areas of America in the North and West that promised to offer a better life for black southern who were treated as secondary citizens under Jim Crow laws that essentially established a caste system in the South. Like many African-Americans in the United States, the author is a second generation descendent of a southern migrant. Her grandmother was among the six million plus blacks who fled the South for the North and West for a chance to live the American dream. In a sense, the perspective is the author’s since she heard many stories over the years from her grandmother about the oppressive south and how the destinations away from Jim Crow contained challenges that they naively thought would be erased by their change of address.

Actually, the author is the medium that allows the migrants to speak through her. Wilkerson takes up the lives of three black Americans that actually took the journey from the Deep South to points north and west. She follows their lives from their birth, through their misery they were made to suffer in the South to their journey to a new life for themselves and their families. She also describes the disappointments and disillusionment they had for their new cities.