Amazon advertising is one of the most powerful tools in a book's launch arsenal — but also one of the most misused. Authors either spend nothing and wonder why nobody finds their book, or spend recklessly and watch their budget disappear with little return. The answer is a three-layer system that builds on itself.
Why Three Layers?
Each Amazon ad type serves a different purpose. Auto campaigns discover. Manual campaigns convert. Competitor campaigns intercept. Running all three simultaneously creates a full-funnel approach that no single campaign type can achieve on its own.
Layer 1: Auto Campaign — The Discovery Engine
Start with an automatic Sponsored Products campaign at $10/day. Set it to loose match and let Amazon find your audience for 7–10 days. Your only job at this stage is data collection — you want to know which keywords and ASINs Amazon associates with your book.
Don't touch an auto campaign in the first 7 days. Let it run. The data you collect in week one is worth more than any savings from pausing early.
Layer 2: Manual Exact — The Conversion Engine
After 7 days, download your auto campaign's search term report. Sort by clicks. Take every keyword with 5+ clicks and move it to a new manual exact-match campaign. These are your proven performers — Amazon already knows they're relevant, and buyers are already clicking.
Set this campaign to $20/day. Bid 20–30% higher than your auto campaign's winning bids. This is where the majority of your sales will come from.
- Target keywords with at least 5 clicks from your auto campaign
- Exclude any keyword with high clicks but zero sales after 14 days
- Review and adjust bids every 7 days — never set and forget
- Target ACOS: 25–40% depending on your book's price and margin
Layer 3: Competitor Targeting — The Interception Engine
Find the top 10 books in your category — the ones ranking above you. Add their ASINs to a manual Product Targeting campaign. When a reader views one of those books, your book appears as a sponsored suggestion.
This is the most underused layer. Competitor readers are already in buying mode in your genre. You're not finding cold traffic — you're meeting warm buyers exactly where they are.
In our campaigns, competitor targeting typically achieves a 15–25% lower ACOS than keyword targeting, because the audience intent is already established by the book they're viewing.
Optimising After Week One
After the first week, run this weekly routine: pause keywords with 10+ clicks and zero sales. Increase bids by 20% on anything with ACOS under 30%. Decrease bids by 15% on anything with ACOS over 50%. Add new keywords from your auto campaign's latest data.
Budget Framework
Our recommended starting budget for a new launch: Auto at $10/day, Manual Exact at $20/day, Competitor Targeting at $15/day — total $45/day or roughly $1,350/month. For most books priced at $14.99+, this produces a positive return within 30–45 days once campaigns are optimised.
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