According to Linkedin Learning's own knowledge base article:
LinkedIn Learning is an online educational platform that helps you discover and develop business, technology-related, and creative skills through expert-led course videos.
With more than 5,000 courses and personalized recommendations, you can discover, complete, and track courses related to your field and interests. You can also choose to add these courses and related skills to your LinkedIn profile once you've completed them.
For more information, visit their knowledge base page.