The book "Observations on the Slave Trade and Description of Certain Parts of the Coast of Guinea during a Voyage Made in the Years 1787 and 1788 in Company with Dr. A. Sparrman and Captain Arrhenius" by Carl Bernhard Wadstrom is a documentary account of a voyage to the south-west coast of Africa in the end of the 18th century. The author talks about the cruelty of the slave trade, his own observations and impressions from the trip, and also provides a detailed description of the coastal area of Guinea. Thanks to the collaboration with the leading scholars of the time, the book contains valuable scientific information and helps to better understand the history of the Atlantic slave trade and its impact on the development of society.