The new One-Click Mapping functionality in CartoDB allows users to quickly and easily visualize their uploaded datasets by suggesting ready-made maps based on basic rules of thumb for data visualization. The platform analyzes the columns in the dataset to identify the best-suited map, taking into account factors such as timestamp columns, sparse values, and numerical data distribution. With just one click, users can access pre-styled maps that remain fully editable, saving time and effort in the initial design process.