A further note:
Introductions seem to suffer from “sackdom” more frequently than other paragraphs. This may be because it feels as if we need to introduce everything in an introduction: not just the thesis of the essay, but also all historical background our reader may need, some secondary quotations to give our reader a sense of the critical background or justify our project, relevant definitions. But you can and should give all those things in a second paragraph, after the intro.
If over-supplying is confusing for a reader in a body paragraph, imagine what it must be like in an intro. A reader has no idea what your essay is even going to be about, and they’re being hit with enormous amounts of information. They don’t know what’s pointing them toward the argument and what isn’t. Remember that an intro is supposed to tell your reader what you’re going to do. Information that doesn’t do that, or that makes that unclear, or that confuses the reader rather than making them comfortable, is probably better sunk into a second paragraph.
Consider, for example, this paragraph:
Lord Byron’s Don Juan is a mock-epic that makes fun of everything. Written between 1819 and 1824, Don Juan was published bit by bit over the course of those five years, ending abruptly with Byron’s death in Greece in 1824. Critics have argued that the poem is a satire of Byron’s earlier poetic hero, Childe Harold, with Arnold Johnson writing that “Juan is a Harold gone to seed” (15). The poem follows its title character as he grows from an innocent teenager to a more worldly young man, working his way through Eastern Europe and England as he does so. As this suggests, Juan’s maturity occurs in tandem with his travels, and the two activities are inextricably linked. In fact, this essay will argue, Don Juan becomes more cynical and knowing as he travels further from the Southern place of his birth, Spain, and towards the Northern nation of England.
Until it arrives at the thesis, this paragraph could be about the fact that Don Juan is a satirical mock-epic the way it was published, or how it compares to Byron’s earlier poem. Your reader is confused, and a confused reader is an unhappy reader.
In contrast, this paragraph has a clear trajectory:
Lord Byron’s Don Juan is a mock-epic that makes fun of everything. The poem follows its title character as he grows from an innocent teenager to a more worldly young man, working his way through Eastern Europe and England as he does so. As this suggests, Juan’s maturity occurs in tandem with his travels. In fact, this essay will argue, Don Juan becomes more cynical and knowing as he travels further from the Southern place of his birth, Spain, and towards the Northern nation of England. In Don Juan, the move northward and the move away from naivety are inextricably linked.
Your reader isn’t waylaid by extraneous information. They feel secure, and they have a clear line through the paragraph. You have held their attention.