Interesting (Non software) books?
aasarava: The Conquest of Mexico, by Bernal Diaz -- a conquistador who traveled with the Cortes expedition to Mexico City to overthrow King Montezuma.  Incredible, true story written by someone who has actually there.  An unknown land; the clash of two cultures; the clash of two religions; temples to angry gods; hoardes of gold in hidden rooms; human sacrifices; alliances; mutinies; enslavement; first description of Tenochtitlan, the city on the lake; the destruction of Tenochtitlan; and more.