Skills Portfolio

Define and Explain "Logos"

"Logic is the anatomy of thought." – John Locke

What is Logos?

Logos are a type of a literary device that can be found in literature and debates, used to convince or persuade the targeted audience by providing reason or logic. It mostly utilizes inductive and deductive reasoning methods to be effective.

When is it used?

Logos are used when making an argument to convince or persuade the audience.

How is it used?

Logos are built through...


  • Facts
  • Statistics
  • If/Then scenarios
  • Research
  • Experiences
  • Reasoning
  • Evidence
  • Cause/Effect
  • Analogy


However, when using this technique, be careful not to use logical fallacies.

Logical fallacies: incorrect argument in logic and rhetoric which undermines an argument's logical validity or more generally an argument's logical soundness.

Why is it used?

Logos are used because it helps the writer make their argument more appealing to the audience by logic.