Book excerpt: YouTube Premium is a paid subscription service offered by YouTube. The service offers several features, including ad-free viewing, background play, and the ability to download videos for offline viewing. YouTube Premium also includes access to Google Play Music, which allows users to stream ad-free music and create custom playlists. The service also includes access to YouTube Originals, which are exclusive content produced by YouTube, such as documentaries, talk shows, and scripted series. The cost of YouTube Premium varies by country, but it is generally around $11.99 per month. The service is available in over 80 countries, and users can sign up for a free trial to test out the features before committing to a subscription. There is also a family plan available, which allows up to six family members to share a subscription. Overall, YouTube Premium provides a convenient and enjoyable way for users to access high-quality content without the annoyance of ads and with added benefits such as offline viewing and access to exclusive content.