Break the complete dataset of items into smaller sequential parts and show these on separate sequential pages. Provide pagination control to browse from page to page. Let the user browse to the previous and next pages by providing links to such actions. Also, provide links to the absolute start and end of the dataset (first and last).
If the dataset is of defined quantity, also show a link to the last page. If the dataset to show possibly is of varying size (for instance as a result from a search), do not bother to show a link to the last page.