Ion Creanga’s liberty of artistic expression determines his humor. The most characteristic features such as love for liberty and dignity had been transmitted genetically to our author. Liberty of expression becomes gradually the perpetuum mobile of Ion Creanga’s humoristic essence. His unique and successful utilization of the ways of expression means greater freedom of the material, which is supplied at writer’s disposal by the language of his people. The defining traits of Creanga’s humor should be discovered in the writer’s individual art of expression. The art of expression in Ion Creanga’s works enables the reader to get in contact with an oral, authentic, and lively style, with a word order characterized by an extraordinary freedom in the materialization of a kind of unusually lively humor which lives through each uttered phrase.