This was purchased from Archibald Constable after his company's failure to publish the seventh edition of the encyclopedia.
[4] Adam Black retired in 1870 due to his disapproval of his sons' extravagant plans for its ninth edition.
Other notable works include Black's Medical Dictionary and the Know The Game series of sports rules and laws reference books.
[9] In 2000 A & C Black was purchased by Bloomsbury Publishing Plc, which continued producing the former's range of reference works.
In 2016, A & C Black Music list moved to Collins Learning, a division of HarperCollins Publishers Ltd.