KDP Lockscreen Ads: The Underused Ad Type That Converts for eBooks

What Are Lockscreen Ads?

Lockscreen Ads (formerly called Kindle Lockscreen Ads) appear on the sleep/lock screen of Kindle e-readers and Fire tablets. When a reader's device is idle, your book cover and a brief tagline fill the screen.

This is a uniquely powerful placement because:

• The reader is already in "reading mode" — they own a Kindle
• Your cover gets full-screen real estate with no competing content
• The audience is exclusively Kindle readers, not general Amazon shoppers

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Performance Benchmarks

Metric	Lockscreen Ads	Sponsored Products
Average CTR	0.15%	0.38%
Average CPC	$0.18	$0.42
Average ACOS	35%	28%
Best for	Cover-driven genres	Keyword-driven genres

Lockscreen Ads have lower CTR but significantly lower CPC. For romance, fantasy, and thriller — genres where cover design drives purchase decisions — they often outperform Sponsored Products on a cost-per-sale basis.

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Setting Up Lockscreen Ads

1. In Amazon Advertising, select "Sponsored Display" and choose "Lockscreen Ads" as the placement
2. Upload your book cover (minimum 1000×625 px)
3. Write a 45-character tagline (your hook or a short review quote)
4. Set your daily budget ($3–5/day to start) and CPC bid ($0.15–0.25)
5. Choose your targeting: by genre, by comparable authors, or by ASIN

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Best Practices

• Use your best cover — Lockscreen Ads are 90% visual. A weak cover will underperform regardless of targeting.
• Test 2–3 taglines — Short, punchy hooks outperform generic descriptions.
• Target by genre first — Genre targeting gives you the broadest relevant audience to gather initial data.

Frequently Asked Questions

Q: Do Lockscreen Ads work for paperbacks? A: Lockscreen Ads are optimized for eBooks and Kindle Unlimited titles. Paperback authors typically see better results with Sponsored Products.

Q: What genres perform best with Lockscreen Ads? A: Romance, fantasy, thriller, and cozy mystery consistently outperform other genres on Lockscreen Ads because readers in these genres are heavily cover-driven.

Q: How do I measure Lockscreen Ad performance? A: Track ACOS, CTR, and cost-per-sale. Compare to your Sponsored Products campaigns for the same book. If Lockscreen ACOS is within 10 points of Sponsored Products, they're worth running simultaneously.

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Related Articles

• How to Lower Your KDP ACOS: The Complete 2026 Guide
• 10 KDP Advertising Mistakes Self-Published Authors Make (And How to Avoid Every One)
• Amazon KDP Ads vs BookBub Ads in 2026: The Complete Comparison Every Self-Published Author Needs

Further reading: Amazon's Lockscreen Ads product page covers eligibility requirements and creative specs.