Amazon PPC glossary
Top-of-Search
Top-of-Search is the premium placement at the very top of Amazon search results, above the organic listings. It tends to get the most clicks, and it often costs the most per click.
Example
You raise your bid for the top spot. You get more clicks and more sales from it, but each click also costs more, so you check that your ACOS stays below your break-even.
Where it matters most: Book 1, The Amazon PPC Clarity Guide, in the chapter “How Amazon PPC Works.”
Go deeper
The glossary gives you the one-line answer. The Amazon PPC Clarity Guide explains why it matters and what to do about it.