Microsoft Office Specialist (MOS) certification is a credential that validates an individuals proficiency in technical skills using Microsoft Office software applications. MOS certification is available for various Office programs, including Word, Excel, PowerPoint, Outlook, Access, SharePoint, and OneNote. MOS certification is divided into three levels: MOS, MOS Expert, and MOS Master, with each level requiring the passing of specific exams. MOS certification is recognized by the industry and can provide individuals with a competitive advantage when applying for jobs that require Microsoft Office skills. MOS certification can also help individuals improve their productivity and work quality.