What is the difference between memoirs and biographies????????????

Answer 1

Quite a bit! Make sure you are clear on the difference between biographies and autobiographies.
http://www.answers.com/memoir
http://www.answers.com/topic/biography
http://www.answers.com/topic/autobiography

I've usually taken "memoir" to mean that someone has written about a particular episode or series of episodes in his or her life, but it could also mean his or her whole life -- therefore, an autobiography.

A biography is when one person writes the life story of someone else.