List of Collins GEM books

Collins GEM is a collection of miniature books by HarperCollins. The original Collins firm published its first dictionary in 1824, and its first series of Collins Illustrated Dictionaries in 1840, including the Sixpenny Pocket Pronouncing Dictionary, which sold approximately 1 million copies. With the invention of steam presses in the 1860s, Collins became able to publish books and dictionaries in all sizes.

List of Collins GEM books

Collins GEM is a collection of miniature books by HarperCollins. The original Collins firm published its first dictionary in 1824, and its first series of Collins Illustrated Dictionaries in 1840, including the Sixpenny Pocket Pronouncing Dictionary, which sold approximately 1 million copies. With the invention of steam presses in the 1860s, Collins became able to publish books and dictionaries in all sizes.