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An ItemSearch request, which we discussed and implemented in the previous sections, often returns multiple items. Typically, an Amazon Associates Web Service application displays a small image of each of those items along with a short description. A customer, however, often likes to pick from the list one or more items that look interesting so they can learn more about them. While it is possible to display extended information about each of the items returned by ItemSearch, the length of the web page would grow substantially. For that reason, we recommend that you provide a customer with extended information only when they show interest in a specific item.
Given the item identifier returned by ItemSearch, you can return extended information about any of the displayed items using the ItemLookup operation. ItemLookup, for example, can return all of the physical characteristics of the item along with pricing information.
