
Zero sales has exactly two possible causes: nobody sees the book, or people see it and don't buy. Here is a 10-point checklist that tells you which one you have — visibility or conversion — and what fixes each, before you spend a cent on ads.

Unmanaged Amazon book campaigns waste 30–50% of their budget on clicks that never convert. Here is how to read your search-term report, concrete rules for negative keywords, and why waste should be measured against net profit.