Leonardo started an apprenticeship in the workshop of Andrea del Verrocchio 1466. Verrocchio was at this time the most gifted and manifoldest artist in Florence. He was a sculptor, painter, goldsmith, bronze caster and more. There is no doubt that Verrocchio had much influence on Leonardo. Verrocchio was fascinated by the drawings of the young Leonardo and so he gave him a place in his workshop. Leonardo worked at the workshop of Verrocchio with some other famous artists like Botticelli, Perugino and Lorenzo di Credi.
Leonardo started his apprenticeship with the mixing of colors and then he painted simple parts of paintings. There are no works of Leonardo known between 1466 and 1472, but Leonardo taught himself to paint in oils at this time. This art practice was developed by dutch artists.
In June 1472 Leonardo was listed in the red book of painters from Florence (Campagnia de Pittori). With the membership in the painters guild of Florence ended the apprenticeship of Leonardo. Leonardo didn't leave the workshop of Verrocchio at the end of his apprenticeship.