Why does a writer writer a autobiography? What is it trying to achieve ? why does a writer writer a autobiography? what is it trying to achieve ?

Some people
write about autobiographies to share lessons learned. Some authors write their own personal
stories to share triumphs and defeats. The reader can learn so much when reading
autobiographies. Some write to share touching moments in their lives. To share a touching moment
is a joy. The author has been touched and he or she wants to touch others when
writing.