Should my cover letter be my autobiography?

A cover letter is intended to be short and concise. It should never be more than a page. Rambling on and telling your entire life story or the market skills and help an applicant get an interview and job, not to tell their personal story. The letter should focus on answering the employer's question of why they should hire you. In addition to not telling a narrative, use simple language and uncomplicated sentences. Before sending, proof the letter and eliminate any unnecessary words.