A rhetorical analysis assignment on The Screwtape Letters asks students to shift their attention away from what the book means thematically and toward how Screwtape constructs his persuasive advice to Wormwood, which is a genuinely different analytical task. This kind of assignment works especially well with this text because Screwtape is, functionally, a rhetoric teacher within the fiction itself, coaching his nephew on techniques of persuasion and manipulation. Grading these essays requires a different rubric than grading a thematic analysis essay, since the focus shifts from what the text means to how the text's internal speaker builds his argument.

Students writing a rhetorical analysis of Screwtape's letters need to identify specific persuasive techniques, such as his use of false authority, his appeals to Wormwood's professional ambition, or his strategic use of condescension to control the conversation. A strong essay will name these techniques precisely and connect them to specific lines of dialogue, while a weaker essay will make vague claims about Screwtape being "manipulative" without ever specifying the mechanism behind that manipulation. This distinction between naming a technique and simply labeling a tone should be a core criterion on any rubric built for this kind of assignment.

It also helps to have students consider the audience within the fiction, meaning Wormwood, separately from the audience outside the fiction, meaning the actual reader of the novel. Screwtape's rhetoric is calibrated specifically for a young, insecure demon eager to prove himself, and recognizing this internal audience helps students understand why certain techniques, like appeals to professional status, appear so frequently throughout the letters. Essays that account for this dual audience, both the fictional Wormwood and the real reader Lewis is actually addressing, demonstrate a more sophisticated grasp of the text's layered purpose.

Core Rhetorical Techniques Worth Assessing

Certain rhetorical moves recur throughout the novel and make good anchor points for a grading rubric, since they give teachers a concrete checklist to verify against student claims. Screwtape's habitual use of false expertise, presenting himself as an authority on human psychology while consistently misunderstanding human virtue, is one of the clearest and most teachable examples. His use of guilt and professional shame to control Wormwood's behavior is another recurring pattern worth flagging, since it demonstrates how rhetoric can function through emotional pressure rather than logical argument alone.

• False authority: Screwtape presents himself as an expert while consistently misreading human motivation and virtue
• Appeals to ambition: he manipulates Wormwood through professional insecurity and fear of failure within the demonic hierarchy
• Strategic condescension: he undermines Wormwood's confidence to maintain control over the correspondence and the outcome
• Euphemism and reframing: he relabels vice and virtue using clinical, bureaucratic language to obscure their moral weight
• Selective evidence: he cites only cases that support his advice while ignoring counterexamples that would weaken his authority

Common Weaknesses in Student Rhetorical Analysis

The most common weakness in student essays on this topic is conflating rhetorical analysis with thematic analysis, producing an essay that discusses what Screwtape's advice means rather than how he persuades Wormwood to follow it. This confusion is understandable given how closely the two modes of analysis are related in this particular text, but it still represents a meaningful gap between what the assignment asked for and what the student delivered. Clarifying this distinction explicitly before students begin drafting, perhaps with a brief in-class exercise contrasting the two approaches on the same passage, reduces this error considerably.

A second common weakness is identifying a rhetorical technique correctly but failing to explain its effect on the intended audience, which leaves the analysis feeling incomplete even when the initial observation is accurate. A strong rhetorical analysis essay does not stop at naming a technique but goes on to explain why that technique would be persuasive to someone in Wormwood's specific position, insecure and eager to please a powerful superior. Requiring this second step explicitly in the assignment instructions, and rewarding it specifically on the rubric, helps students move past simple identification and toward genuine rhetorical reasoning.

Providing Feedback That Builds Rhetorical Skill

Feedback on rhetorical analysis essays should model the very skill being assessed, meaning comments should themselves demonstrate precise, specific language rather than vague praise or criticism that leaves students unsure what to revise. Telling a student their analysis of Screwtape's condescension was strong because it connected to a specific line and explained the effect on Wormwood's confidence gives them a template to apply in future paragraphs. Generic comments like "good analysis" or "needs more depth" do little to build the specific skill of identifying and explaining rhetorical technique that this assignment is meant to develop.

Because rhetorical analysis is a skill students will need well beyond this single unit, whether analyzing political speeches, advertisements, or other persuasive texts later in their education, the feedback given here has value that extends past this one assignment. Teachers who take the time to give specific, technique-focused comments on Screwtape essays are effectively building a transferable analytical skill, not just grading a single assignment on a single book. This makes the extra time invested in detailed feedback worthwhile even for teachers managing a heavy grading load across multiple sections and assignments.