Perform detailed research on the subject, list down in a chronological order the key events of his/her life, and then structure the same into a narrative by picking out personal and professional achievements along the way. Go back for revisions for facts and engagement.

Some of the challenges that exist in writing a biography include gathering the accurate information, writing objectively, and creating a compelling story to capture the reader's mind. All these can be overcome by researching well, and interviewing sources.

One can become a great biography writer by reading different biographies that have been written about famous and practicing their writing and researching skills. This may also be achieved by consulting others to receive feedback and the critical ones. Being balanced and developing an interesting perspective about the subject or object is very key.