Hope Not Hate, Britain's largest anti-racism organization, undertook an investigation and campaign calling attention to racist and anti-Semitic tracts, Holocaust denial books, bomb-making manuals and the like that are for sale on the websites of Waterstones, Foyles, and WH Smith (as well as Amazon). So the booksellers have begun removing those items from their sites.
SOURCE: The Guardian at 08:01AM on March 22, 2018