Amazon Product Advertising API Developer's Manual page 399

Product Advertising API Developer Guide
Value
relevancerank
SearchIndex: MusicalInstruments
Value
pmrank
salesrank
price
-price
-launch-date
sale-flag
SearchIndex: MusicTracks
Value
titlerank
-titlerank
SearchIndex: OfficeProducts
Value
pmrank
salesrank
reviewrank
price
-price
titlerank
Sort Values for US
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.
Description
Featured items
Bestselling
Price: low to high
Price: high to low
Newest arrivals
On sale
Description
Alphabetical: A to Z
Alphabetical: Z to A
Description
Featured items
Bestselling
Average customer review: high to low
Price: low to high
Price: high to low
Alphabetical: A to Z
API Version 2011-08-01
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