Search for a literary agent once your autobiography is complete. Finding an agent is essential to getting your book published, as he or she will represent you and your story and try to sell it to publishing houses. Use resources such as AgentQuery (agentquery.com), The Guide To Literary Agents (guidetoliteraryagents.com) and Writer's Market (writersmarket.com) to find agents who represent autobiographies.
Write a query letter to pitch your book to literary agents. The letter should briefly summarize the story of your autobiography and why it is different from anything else on the market, as well as include information on your background and credentials. Check the submission guidelines on each literary agency's website and tailor your information accordingly; some agents want sample chapters up front, while others only want a letter.
Send your query letter via the method preferred by each literary agent. Most prefer e-mail, but some agents request materials by U.S. mail. Response times vary from a few weeks to six or more months; wait at least eight weeks before sending a follow-up e-mail.
E-mail or mail sample chapters or your entire manuscript if requested by an agent. He or she will review your autobiography and offer you representation if your story is of interest.
Interview the agent before accepting an offer of representation. Ask how many books of your type have been sold by the agency and to which publishing houses, how royalties and rights are handled and how often the agent communicates with clients. Also ask for references before signing a contract with a literary agent; a reputable agent will provide the contact details of current clients so you can speak with them about the agent's work.
Keep in regular contact with your agent regarding your autobiography. He or she will update you regarding offers from publishers and advise you through the publishing process.
Some publishers consider publishing works that are not submitted through an agent, that are sent in by the author. In Writer's Market and other directories, you can learn which publishers consider unagented material.