Digital preservation is the process of maintaining and ensuring the accessibility of digital information over time. As technology evolves and digital formats change, it becomes vital to implement strategies that protect and sustain digital content. This includes a range of practices from data migration and format conversion to the use of metadata for context and retrieval. Understanding the principles of digital preservation is crucial for libraries, archives, and individuals who manage digital content, as it ensures the longevity and usability of invaluable information in our increasingly digitized world.