Certifications are official documents that prove a person has completed specific training or education in a particular field. They are often awarded by professional organizations or educational institutions and can enhance a person's qualifications for a job. For example, a Certified Public Accountant (CPA) certification shows that an individual has met the necessary requirements to practice accounting professionally. Having certifications can make job seekers more attractive to employers, as they demonstrate expertise and commitment to a profession. Many industries, such as information technology and healthcare, require certifications to ensure that workers have the skills needed to perform their jobs effectively.