Net Book Agreement
The Net Book Agreement (NBA) was a fixed book price agreement in the United Kingdom and Ireland between The Publishers Association and booksellers which set the prices at which books were to be sold to the public. The agreement was concerned solely with price maintenance. It operated in the UK from 1900 until the 1990s when it was abandoned by some large bookshop chains and was then ruled illegal. The net book agreement has not been in operation in Ireland since the early 90s.