Installation: git clone, python setup.py install, add ‘viewhelpers’ to ckan.plugins BEFORE other plugins that depend on it. No configuration required. Filtering syntax: ?filters=Country:Brazil for single filter, ?filters=Country:Brazil|Country:USA for multiple values (OR), ?filters=Country:Brazil|Year:1990 for multiple keys (AND). Filter form: Use filters_form CKAN module to create forms allowing users to define default filters for resource views. JavaScript tests included. Used by: ckanext-dashboard, ckanext-basiccharts, ckanext-mapviews. Use cases: Interactive data visualization with user-controlled filtering, chart views with multiple data slices, dashboard creation with filtered datasets, geographic visualizations with field-based filters. Note: Designed for CKAN’s Resource View feature from 1251-resource-view branch.