"The Annexation of Puerto Rico to the United States of America" is a work by renowned historian Juan B. Nieves that examines the process of Puerto Rico's accession to the United States. The book examines in detail the historical context and political circumstances that led to this important event for the Caribbean island. The author reveals the most important aspects of the annexation, noting its consequences for the population of Puerto Rico and the relationship between the island and the mainland United States. The book is a valuable source for understanding the historical development of the region and its place in world politics.