What is a commission how does it differ from patronage?

A commission is a formal agreement in which a client pays an artist or creator to produce a specific work or project, often with defined parameters and expectations. In contrast, patronage involves ongoing support from an individual or institution, typically providing financial backing or resources to an artist over time without necessarily commissioning specific works. While commissions are transactional and project-focused, patronage is more about fostering an artist's overall career and creative endeavors.