The book "Reflections on the Negro Case, Naturally So Called" is an important philosophical and socio-political work written by the author Samuel Estwick. In his book, the author addresses the Right Honorable Lord Mansfield, Chief Justice of the Court of the King's Chambers, in order to highlight problems and aspects related to the situation of blacks in society. Estwick analyzes the discrimination, inequality, and usury faced by blacks in the society of his time, and expresses his thoughts on ways to solve these problems. The author uses logical arguments, philosophical reflections and legal analyzes to justify his views. "Reflections on the case of Negroes, naturally so called" is not only a literary work, but also a document that encourages discussion and reflection on social and ethical problems related to racism and inequality in society.