Book excerpt: Puerto Rico is a Caribbean island and an unincorporated territory of the United States. The island is located in the northeastern Caribbean Sea, east of the Dominican Republic and west of the British Virgin Islands. Puerto Rico has a tropical climate and is known for its beautiful beaches and crystal-clear waters, making it a popular tourist destination. The island is densely populated, with over three million people living there, making it the third-largest island by population in the United States. Puerto Ricans are citizens of the United States and have been since 1917. The island has a unique cultural mix of African, Taíno, and European influences. The official language is Spanish, and English is also widely spoken. Puerto Rico's economy is mainly based on manufacturing, tourism, and services. The island has a distinct political status, remaining as an unincorporated territory and not being granted statehood or independence.