Visibilities and Unity: Messages in Martin Luther King Jr's "Letter from a Birmingham Jail". This 4-page essay considers the sociohistorical message behind Martin Luther King Jr.'s "Letter from a Birmingham Jail", arguing that it was King's plea for a united and visible campaign for individual rights. Pages: 4 Bibliography: 5 source(s) listed Filename: 18242 Visibility Martin Luther.doc Price: 35.80