Nielsen Book collects all information on books published around the world into a central database. Librarians, booksellers and publishers are given access to this database on a subscription basis. It includes New Zealand titles, as well as local details such as New Zealand dollar prices and local distributors for overseas-published titles. Nielsen BookScan monitors sales from chain bookshops, internet booksellers, discount outlets and independent bookshops in New Zealand, and collects actual sales at the point of sale. Nielsen BookScan aggregates the data and provides the book trade with reports, either by direct access to BookScan-Online or through charts.