Updated October 7, 2026. Verify changing platform requirements with the primary sources below.
What to know before you decide
- Separate agency or professional service fees from actual advertising spend.
- Define the campaign window and the number of assets, channels and reporting cycles included.
- Make sure the book detail page, cover, description and author profile are ready before driving paid traffic.
- Use measurable campaign goals rather than promises of guaranteed bestseller status or sales.
Primary sources
For rules, fees and platform requirements that can change, verify the current source before acting.
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