This collection of letters investigates the socio-economic and ethnographic realities of the Gold and Slave Coasts of Africa during the late eighteenth century. The author, Paul Erdmann Isert, was a trained botanist and medical doctor whose observations provide a unique perspective on the regional dynamics of the trans-Atlantic slave trade. By documenting his experiences and his failed attempt to establish a plantation as an alternative to the slave trade, Isert offers a critical primary source regarding colonial interactions and local life in West Africa and the West Indies.

Historians and scholars of African history frequently cite this work as a foundational primary source for understanding late eighteenth-century colonial perspectives. The text is noted for its clinical detail and its significant contribution to the study of the abolitionist movement's early precursors.