In this book, the reader will find a collection of stimulating essays that shed light on issues concerning Humboldt. They explore the development of his methods and ideas while traveling through the Americas and afterwards, his connections to and relations with local actors and local knowledge, his exchange of information with other scientists worldwide, the endurance of his ideas and methods, his contribution to the preservation of historical documents and knowledge, and even the political consequences of specific material collected and shared by him, either personally or through the press. This book brings new perspectives and layers of meaning to the understanding of Humboldt’s impact and legacy in the Americas.