A good introduction does three specific jobs: it earns the reader's attention without cheating, it installs just enough context that the thesis makes sense, and it commits to a claim. Most weak introductions either bury the thesis or open with a sentence so generic ("Throughout history, humans have always...") that the reader learns to skim. The eight essay introduction examples below are written in the voice of real undergraduate essays, each annotated so you can see the parts clicking into place.
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We picked these eight by choosing genres students actually get assigned most often — three argumentative, two analytical, two narrative, one compare-contrast — and for each one we show the stronger version next to a weaker version of the same opening so you can see the specific moves that do the work.
1. Argumentative intro on algorithmic hiring tools
Strong: "Algorithmic resume screeners now touch an estimated three out of four applications at large U.S. employers, and the vendors selling them promise objectivity. That promise is the problem. When a model is trained on historical hiring outcomes, it inherits the biases of the humans it is meant to replace — and does so with a veneer of mathematical neutrality that makes those biases harder, not easier, to challenge. This essay argues that algorithmic hiring tools should be regulated as consumer-credit decisions are, with mandated explanation rights and audit trails, because the current opacity is not a bug of the technology but its selling point."
Weaker version: "Technology has changed the hiring process in many ways. Some people think this is good and some people think this is bad."
Why it works: The strong opening opens with a specific statistic (three in four), names the turn ("That promise is the problem"), compresses the mechanism into one sentence, and lands the thesis as the final sentence of the paragraph.
2. Argumentative intro on a sugar tax
Strong: "Every argument against a sugar tax rests on the same pair of claims: that it is regressive, and that consumers will substitute toward equally caloric alternatives. The evidence from Mexico, the UK, and Berkeley suggests the first claim is roughly true and the second is roughly false. Once you accept that asymmetry, the policy question shifts from whether to tax sugar to how to recycle the revenue. This essay argues that a federal sugar tax is defensible if and only if its proceeds are ring-fenced for SNAP produce subsidies, because that pairing neutralizes the strongest regressivity objection without diluting the behavioral effect."
Weaker version: "Sugar taxes are a controversial topic with arguments on both sides."
Why it works: It names the two strongest objections in the first two sentences, evaluates each, and uses the asymmetry to set up a conditional policy thesis. Notice how much of the essay is already forecast in the last sentence.
3. Argumentative intro on campus free-speech policy
Strong: "The clearest way to judge a university's free-speech policy is not by reading its mission statement but by counting how many disinvitations it has tolerated in the past five years. By that metric, the policies that sound most principled are often the least durable. The point of a free-speech policy is not to state values; it is to survive predictable pressure. This essay argues that effective campus speech policies must include pre-committed procedural rules — clear disinvitation thresholds, published in advance — because principles that are invented under pressure rarely hold."
Weaker version: "Free speech on college campuses is an important issue in today's society."
Why it works: It replaces a vague opening move (calling the issue "important") with a concrete measurement test, and the thesis identifies a specific design feature that the body can defend.
4. Analytical intro on imagery in Hamlet
Strong: "Readers of Hamlet tend to notice the famous images — the skull, the poison, the ghost — and miss the quieter pattern underneath them. Across all five acts, Shakespeare returns repeatedly to images of things growing in enclosed spaces: gardens gone to seed, weeds in walled plots, a state that an older Hamlet calls 'an unweeded garden.' This recurring figure is not decorative. It is the play's structural argument that corruption, once sealed in, cannot be reasoned out. This essay reads Hamlet's enclosed-garden imagery as a deliberate counter to the revenge-tragedy convention that violence can purge a court, arguing that the play's central claim is that some political rot is not extractable."
Weaker version: "Shakespeare uses a lot of imagery in Hamlet to show the themes of the play."
Why it works: It resists the obvious pattern (famous images) and argues for a less obvious one, then commits to a reading the body will have to defend against the standard interpretation. For more on this kind of analytical framing, our blog on how to start a research paper walks through the hook-to-thesis arc.
5. Analytical intro on a data set in an empirical paper
Strong: "The American Time Use Survey is usually read as a portrait of how Americans spend their hours. Read more carefully, it is a portrait of what they are willing to tell a government surveyor they spend their hours on. The gap between those two things is the methodological problem at the center of any serious time-use analysis. This essay argues that ATUS underreports two categories in particular — informal caregiving and informal work — by margins large enough to flip headline conclusions about gendered labor, and it proposes three triangulation strategies that partially correct the bias."
Weaker version: "The American Time Use Survey provides useful information about how people use their time."
Why it works: It reframes a standard data source as a reliability problem, names the specific categories where the reliability breaks down, and promises three fixes. Analytical theses need a built-in counterargument.
6. Narrative intro on a turning-point moment
Strong: "My grandfather kept two wallets. One lived in his back pocket and held his driver's license. The other lived in the freezer, wrapped in tinfoil, and held four hundred dollars in twenties. I was eleven the summer I found the freezer wallet, and I have spent the twenty years since trying to understand what kind of man keeps emergency money next to the ice cream. This essay is about the answer I finally reached, and about the Depression-era lesson my grandfather was trying to teach me without ever using the word."
Weaker version: "My grandfather was an interesting person who taught me many important lessons about life."
Why it works: The specific image (freezer wallet, tinfoil, four hundred dollars) does the hook work, and the last sentence commits the essay to a specific arc rather than a vague promise of reflection. For more prompts in this mode, see our narrative essay topics for college list.
7. Narrative intro on a recurring family ritual
Strong: "Every Sunday night for seventeen years, my mother ironed my father's five work shirts in front of the six-thirty news. She was a graduate-level engineer; he ran a small commercial bakery that had nothing to do with the news at six-thirty. I spent most of my childhood assuming the ironing was about the shirts. It took me until college to understand it was about the news, and what my mother was quietly refusing to let slip past her. This essay is about the week the ritual stopped, and what that silence finally said out loud."
Weaker version: "Rituals and routines were an important part of my childhood and taught me a lot."
Why it works: Specificity in the first two sentences (seventeen years, five shirts, six-thirty news, graduate-level engineer) earns trust, and the reversal in the third sentence signals that the essay has a real turn to deliver.
8. Compare-contrast intro on two historical revolutions
Strong: "The French and Haitian revolutions are almost always taught as a pair, and almost always framed as variations on a single theme: liberty expanding outward. That framing obscures more than it reveals. The more useful question is why the French revolution generated a durable constitutional vocabulary while the Haitian revolution, which was arguably the more radical of the two, did not. This essay argues that the divergence is less about ideology than about post-revolutionary isolation: France inherited a diplomatic network; Haiti inherited an embargo, and that asymmetry shaped which revolution got to write the textbook."
Weaker version: "The French Revolution and the Haitian Revolution had many similarities and differences."
Why it works: It names the standard framing, rejects it, and proposes a specific alternative axis of comparison in the same paragraph. For more prompts that set up this kind of axis from the start, see our compare-contrast essay topics list.
How to pick a pattern for your opening
Match the hook to the genre. Argumentative openings usually earn the most from a specific statistic or a named-objection move. Analytical openings earn the most from pointing at an obvious pattern and arguing for a less obvious one. Narrative openings earn the most from a concrete image that could only belong to you. Whatever you open with, the paragraph has to land on a thesis that commits, not a sentence that previews.
If you are stuck on the thesis itself, work on that first — our thesis statement examples post has ten worked examples across genres — and then write the introduction backward from the commitment. For the full introduction-to-conclusion arc, the pillar on how to write a research paper is a more complete walkthrough, and our argumentative essay page covers structure expectations for that specific genre.
Frequently asked questions
How long should an essay introduction be?
Roughly 8 to 12 percent of the total essay. For a standard 1,500-word paper, that is 120 to 180 words — usually a single paragraph. Longer introductions tend to be stalling; shorter ones tend to skip the context readers need.
Should I start with a quote?
Usually no. A quoted opening asks the reader to engage with someone else's voice before they have engaged with yours, and it rarely earns the space it takes. Use a quote later in the introduction only if it does analytical work you could not do in paraphrase.
Where exactly does the thesis go?
As the last sentence (or last two sentences) of the introduction in most academic genres. Putting it there means every earlier sentence is working to set it up, which is the entire point of an introduction.
Can narrative essays skip the thesis?
They should not skip the commitment. A narrative essay does not need a "this essay argues that" sentence, but it does need a final introductory sentence that signals the shape of the arc to come. Without that commitment, readers keep waiting for the essay to start.