Book excerpt: The Danish West Indies - the islands of St. Thomas, St. John, and St. Croix - were a traditional Caribbean colony, characterized by sugar production, trade, and shipping. The colony was under the Danish flag from 1671 until 1917, since which time the islands have been known as the United States Virgin Islands. The archival sources for the history of the three islands are first and foremost in the Danish National Archives. These records are exceptionally comprehensive and their research potential is enormously rich, as the Danes have been meticulous in documenting almost everything that happened in the colony and in preserving the records. The Danish archival sources are therefore unique historical resources today. This book is a thorough guide to the vast Danish West Indian material in Denmark.