There are two types of advertising on Transport for London's systems. Commercial advertising, for products, services, films etc, and Transport for London's own publicity (for example: travel information, safety messages etc).
other division of Transport for London), and in all cases, enquiries should be made to the advertiser. Transport for London, its sales agents and advertising contractors are not legally authorised to sell or distribute commercial advertising.
Certain current Transport for London posters may from time to time be available for public sale, but only if Transport for London has been able to purchase the relevent sales rights from artists, designers or design agencies.