Samuel Johnson, often called Dr Johnson, was an English writer who made lasting contributions as a poet, playwright, essayist, moralist, literary critic, sermonist, biographer, editor, and lexicographer. The Oxford Dictionary of National Biography calls him "arguably the most distinguished man of letters in English history".

A genre of arts criticism, literary criticism or literary studies is the study, evaluation, and interpretation of literature. Modern literary criticism is often influenced by literary theory, which is the philosophical analysis of literature's goals and methods. Although the two activities are closely related, literary critics are not always, and have not always been, theorists.