Open licenses are legal tools that allow creators to share their work with others while retaining certain rights. These licenses enable users to copy, modify, and distribute the work, often with specific conditions. For example, a Creative Commons license may require that users give credit to the original creator or share any derivative works under the same terms. These licenses promote collaboration and innovation by making it easier for people to access and build upon existing works. They are commonly used in various fields, including software development, art, and education, fostering a culture of sharing and creativity.