Amazon Product Advertising API Developer's Manual page 332

Product Advertising API Developer Guide
Value
price
-price
reviewrank
-launchdate
SearchIndex: Shoes
Value
relevancerank
salesrank
price
-price
reviewrank
-launch-date
SearchIndex: Software
Value
salesrank
price
-price
titlerank
-titlerank
releasedate
-releasedate
SearchIndex: SportingGoods
Value
salesrank
price
Sort Values for CN
Description
Price: Low to high
Price: High to low
Average customer review: High to low
Launch date: Latest to earliest
Description
Items ranked according to the following criteria: how often the keyword
appears in the description, where the keyword appears (for example,
the ranking is higher when keywords are found in titles), how closely
they occur in descriptions (if there are multiple keywords), and how
often customers purchased the products they found using the
keyword.
Best to worse selling
Price: Low to high
Price: High to low
Average customer review: High to low
Launch date: Latest to earliest
Description
Best to worse selling
Price: Low to high
Price: High to low
Alphabetical: A to Z
Alphabetical: Z to A
Release date: Oldest to newest
Release date: Newest to oldest
Description
Best to worse selling
Price: Low to high
API Version 2011-08-01
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