A resume is a formal document that summarizes a person's work experience, education, skills, and accomplishments. It is typically used when applying for jobs to showcase qualifications to potential employers. Resumes can vary in format, including chronological, functional, or combination styles, depending on the individual's background and the job they are seeking. The main purpose of a resume is to provide a clear and concise overview of a candidate's professional history. It helps employers quickly assess whether an applicant is a good fit for a position. A well-crafted resume can significantly increase the chances of landing an interview.