"The influence of Europeans on Africa in terms of civilization and international relations. A Review of the Treaty of May 30, 1879, Known as the Lourenço Márquez Agreement is a book by renowned author Carlos Testa that examines the impact of Europeans on Africa and their interaction with local civilizations. The author analyzes in detail the "Lawrence Marches" agreement of 1879 as one of the precedents of European colonial policy in Africa. This book is an important source for understanding the history of colonialism and relations between Europe and Africa in the 19th century.