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In page Judith Butcher:

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The book set the standard for good editing practice and disseminated it throughout the UK, the English-speaking world and beyond: it has been translated into several languages. Copy-editing enabled standards to be maintained during the structural changes of the 1970s and 1980s, as publishing houses shed staff and turned increasingly to freelance copy-editors. Copy-editing is now predominantly a freelance occupation, and the book has provided guidance to generations of freelances without access to in-house training.[citation needed]