This gallery example displays the World Happiness Report 2019 data, presenting each country’s happiness score alongside contributing factors such as GDP per capita, social support, and healthy life expectancy. The visualization loads the data from a CSV file and displays the raw parsed JSON, demonstrating the initial data-loading phase. It uses d3.v7’s `select`, `csvParse`, and `fetch` API to retrieve and parse the dataset, updating the view through a state management system.