Book Planning & Story Development

How do I write a nonfiction book introduction?

By the WriteLoom editorial teamUpdated 2026-06-04
Key facts
  • The introduction must hook and earn the reader's commitment.
  • It states the problem and why it matters to the reader.
  • It establishes the author's credibility briefly.
  • It promises the transformation or payoff to come.
  • It should be tight — readers and browsers sample it.
Direct answer

Write a nonfiction introduction that does four things efficiently: hook the reader with the problem or stakes, show you understand their situation, establish briefly why you and this book are trustworthy, and promise the transformation the book delivers. Keep it tight and reader-focused — not a long throat-clearing about yourself. The introduction's job is to convince a sampling reader that this book is for them and worth their time, then start delivering.

Chapter i·Why it matters

The introduction is heavily sampled — browsers and "Look Inside" readers judge a nonfiction book by it — so it disproportionately determines whether someone reads or buys. A self-indulgent or vague intro loses them; a tight one that names their problem, earns trust, and promises a payoff pulls them in. Knowing the introduction is a persuasion and promise document, not a warm-up, is what makes it do its real job.

Chapter ii·What to include

  • A hook: the problem and its stakes.
  • Evidence you understand the reader.
  • Brief author credibility.
  • A clear promise of the transformation.
  • A reader focus over author backstory.
  • A tight, sample-ready length.

Chapter iii·Example

A finance author opens her introduction with the reader's pain — money anxiety despite a decent income — shows she gets it, establishes her credibility in two sentences, and promises a clear system by the end of the book. A browser sampling the intro feels seen and sees the payoff, and keeps reading.

In WriteLoom

WriteLoom's Plan studio keeps your book's promise and structure in view, so the introduction sets up exactly what follows.

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