Final answer:
MLK employs logos in his 'Letter from a Birmingham Jail' by using well-structured logical arguments, historical context, and legal reasoning to justify the civil rights movement's actions and the immediate need for societal change.
Step-by-step explanation:
Martin Luther King Jr. uses logos in his "Letter from a Birmingham Jail" to appeal to reason and logic to argue his case for civil rights and the immediate need for change. He meticulously constructs logical arguments to justify the civil disobedience actions taken by the civil rights movement.
For example, he explains the difference between just and unjust laws, advocating that it is morally right to disobey laws that are inherently unjust. King uses historical examples, legal analysis, and the analogy of the undeniable urgency for a "quick remedy" as logical arguments to support the fight against racial injustice. In doing so, King utilizes logos to bolster his claims and convince his readers of the righteousness of the civil rights movement's cause.