Tracking cookies are small pieces of data stored on your computer by websites you visit. They help websites remember your preferences, login information, and browsing habits. This information can be used to enhance your user experience by personalizing content and advertisements. However, tracking cookies can also raise privacy concerns. They allow companies to collect data about your online behavior, which can be shared with third parties for targeted advertising. Users can manage their cookie settings through their web browser to limit or block tracking cookies if they wish to protect their privacy.