Livelib is a social network and a book recommendation service for book lovers. With it, you can keep track of what you have read, what is new, and what you want to read. It also allows you to participate in challenges with thousands of other readers. The app will keep track of your progress and tell you when you have reached the goal.

The service is based on the idea that every user is a reviewer and that every book has a number of reviews. Each review contains a number of ratings, which are derived from the opinions of the reviewer. It also contains a number of tags, which are used to group the reviews. Every user is also a member of a social network, which is used to keep track of the books that you have read and to receive a recommendation.