Which steps did martin luther king jr. outline for a nonviolent campaign in his “letter from birmingham jail”?

The steps that Martin Luther King Jr outlined for a non violent campaign in his "Letter from Birmingham Jail" were the following:

Gathering of facts.

Negotiation.

Self-purification.

Direct action.

-Gather of facts. It refers to the collection of the facts to determine whether injustices exist. The injustices referred to the discriminatory treatment of African-Americans in the judicial process in Birmingham and the bombing of African-American homes and churches.

-Negotiation. He advocated for a "dialogue" between African-American leaders and the leaders of the city to ensure the fairer treatment of African Americans in the city. 

-Self purification. This involved the creation of a number of workshops to educate people about nonviolence to ensure that people were able to face violence from others without retaliating and understood the reality of going to jail.

-Direct action. The final step, it involved getting the community together and marching in public.