Charities with an annual turnover of less than £500,000 are offered concessionary copies.
Commercial concerns, trade associations, interest groups and larger organisations with charitable or not-for-profit status are not normally offered concessions.
Complimentary copies are offered to individuals who could not otherwise afford to purchase - typically students, people between jobs and those who are fully retired - and to charities with a turnover of less than £100,000.
Staff employed in schools teaching children up to sixteen years of age.
