Personal Narrative of Travels to the Equinoctial Regions of America, during the years 1799-1804 is a three-volume account of an expedition taken from Spain to South America by naturalists Alexander von Humboldt and Aimé Bonpland. The authors visited Venezuela, Cuba, Andes, Mexico and USA where they collected the material and made extensive notes. Their joint effort to record a memoir of this great expedition is quite interesting and valuable because it contain specific documentation of their scientific observations, but it also presents an intriguing and romantic work with many poetic descriptions of nature and the people who lived in the areas he visited.

Alexander von Humboldt (1769-1859) was a German polymath, geographer, naturalist, explorer, and proponent of Romantic philosophy and science. Humboldt's quantitative work on botanical geography laid the foundation for the field of biogeography. Humboldt's advocacy of long-term systematic geophysical measurement laid the foundation for modern geomagnetic and meteorological monitoring.