What books inspired Christopher Columbus to set sail in search of riches?

Christopher Columbus was inspired by several texts, most notably "The Travels of Marco Polo," which detailed the wealth and wonders of Asia. Additionally, he was influenced by the writings of the classical geographer Ptolemy, which shaped his understanding of the world and geography. The desire for trade routes and riches, particularly spices and gold, as well as the accounts of earlier explorers, fueled his ambition to seek new lands. These inspirations ultimately led him to propose his voyage across the Atlantic in search of a western route to Asia.