A producer is someone who combines capital and labor to create something with value. For example, a carpenter takes planks of wood (capital) and uses them (labor) to make a table, which he can sell at the market (value). With the money he earns he can buy more planks of wood, or other goods and services provided by other producers. As you can see it's a cycle.
Many claim he was the smartest man to ever live and his talents are simply impossible to deny. He created scissors, parachute, Mona Lisa, Anatomy Studies, and Engineering.