Outline your biography before you write. Create a set of notes about basic subjects and information you want to include and structure your outline so that it creates a guideline for six to eight sentences.
Make a brief time line of important events, such as the day of your birth, your graduation from high school or college, the beginning of your career, marriage and the births of your children.
Begin your paragraph with a topic sentence that denotes who you are and provides a reference for the reader. For example: My name is John Doe, and I was born in 1975 in Madison, Wisconsin.
Write the paragraph according to your outline and your time line. Biographies are usually written in a linear fashion, beginning with birth and moving on throughout the years of life; however, you can choose to write a topical biography and include important events in another order instead of the order those events occurred.
Write brief, pointed sentences that contain the necessary information without including extraneous details. Wordy paragraphs obscure the most important information.