In today’s digital landscape, data has become the lifeblood of modern businesses. It serves as the foundation upon which organizations make critical decisions, drive operational efficiency, and build lasting customer relationships. However, the success or failure of these endeavors hinges on one crucial factor: data quality. This eBook titled ‘Mastering Data Quality: The Semarchy Guide to Data Hygiene, Governance, and Excellence’ provides insights into the importance of data quality, hygiene, and governance in the digital world.