An appointment letter is a formal document issued by an employer to officially offer a job to a candidate. It confirms the candidate’s selection and outlines key details such as the job title, start date, salary, work hours, and job location. The letter also includes terms and conditions of employment, such as probation period, benefits, and reporting structure. It's typically signed by a company representative and requires the employee’s acceptance signature. The appointment letter serves as a binding agreement between the employer and the employee, ensuring clarity and mutual understanding of the employment terms.