Amazon Ads for KDP Books: A Beginner’s Guide

Get the book page ready first

An ad may bring a shopper to your detail page; the page still has to help them decide whether the book is right for them. Before spending, check that:

• The cover, title, description, and audience make sense together.
• The sample or preview represents the actual interior and gives shoppers a useful idea of what they will receive.
• The price and format are deliberate and available in the marketplace you plan to advertise in.
• You have the rights to the book content and any claims or material used in the ad.

Amazon reviews ads against its current eligibility and creative policies. Review the KDP advertising requirements and book-ad policy before creating a campaign.

Understand the main book-ad formats

A measured way to start

1. Pick one book and one reader. Write down who the book is for and what they might search for. Keep the ad relevant to the book they will land on.
2. Choose a marketplace where the book is available. Ads, formats, and eligibility are not the same in every country. Confirm current options in your KDP or Ads account.
3. Keep the first campaign easy to evaluate. Amazon recommends Sponsored Products for getting started. Automatic targeting can help explore matches based on book information; manual targeting gives you more control over selected search terms or products. Use the current campaign builder to confirm what each setting does.
4. Set a limit you are comfortable spending. Choose a daily budget and bids you can afford even if the campaign gets clicks without sales. Budget rules can vary by campaign and marketplace, so read the current terms in the Ads console.
5. Review results before making changes. Let reporting populate, then adjust one thing at a time, such as a bid, target, or budget. This makes it easier to understand what changed.

A small budget is not a promise of low total cost if several campaigns or marketplaces are active. Check the account billing and campaign status regularly, and pause campaigns you no longer want to run.

What to look at in the reports

• Impressions: how often the ad was shown. Impressions alone do not show whether shoppers were interested.
• Clicks and click-through rate: whether shoppers clicked after seeing the ad. Compare the ad promise with the cover and detail page shoppers reach.
• Cost per click and spend: what the traffic cost. Check that actual spend stays within the limits you chose.
• Attributed orders and sales: purchases the Ads system connects to ad clicks. These are not necessarily all of the book's sales.
• ACOS: ad spend divided by sales attributed to ads. A reported sale or a low ACOS does not automatically mean the campaign was profitable after printing costs and royalties.

Compare ad spend with the royalty you actually earn after print costs and other applicable adjustments, not only with the book's list price. The KDP Royalty Calculator can help model a print-book estimate; verify your current settings and earnings in your KDP account.

Do not confuse ad reports with KDP sales reports

Amazon Ads reports activity attributed to ads. KDP reports overall book orders and royalties, including purchases that came from other sources. The numbers and reporting dates can therefore differ. Amazon's KDP guidance says some ad-sale metrics can include purchases attributed within 14 days of a click, and report data can take time to populate. Avoid judging a campaign from the current day alone.

For current timing and reporting definitions, read Amazon's KDP advertising help and its book advertising reports guide.

Common mistakes to avoid

• Spending more than you can afford because an ad has impressions or clicks.
• Targeting broad or unrelated searches that do not match the book.
• Changing bids, targeting, cover, and price all at once, making results difficult to interpret.
• Assuming every sale in KDP came from an ad—or that every attributed sale is profitable.
• Using unsubstantiated claims, misleading wording, or creative that does not comply with current ad policies.

Start with official guidance

Campaign controls and eligibility change. Before you advertise, check Amazon's current guide for authors and follow the requirements shown in your own account. Amazon Ads is optional; make the decision based on your goals and budget.

New to KDP? Read what Amazon KDP is. If you publish a print book, you can also learn about print-on-demand books and estimate KDP print royalties before setting an ad budget.