The Steps to write a biography are as follows: 

1. Define the subject. This includes what the person does and what he/she has done.
2. Research. Do some research on the person, including his/her family, friends, and associates.
3. Drafting. Write down all that you have learned about the subject in detail using proper words, phrases and sentences.
4. Revising and Editing. Make sure that everything is clear, concise and easy to understand for readers by editing your draft again and again until it is perfect!
5. Write an outline for each chapter in the book and make sure each chapter follows a logical order that makes sense once you start writing it down in sentences and paragraphs.