What does it mean when someone advises you to "write what you know"?

What happened after gandhi’s quit india speech?

What are the authors purposes in writing its our world too young people who are making a difference

Both wiesel’s all rivers run to the sea and spiegelman’s maus relate events of the holocaust from a jewish survivor’s perspective. using the third-person point of view. by retelling the experiences of friends. through the eyes of their fathers.