Excellent.

An excellent book ...

Specters haunt the history of publishing and of humanistic scholarship in early modern Europe: lean, shabby ghosts. Correctors, as they were usually called, prepared manuscripts for the press, read proofs, and often added original material of their own. They were everywhere in the world of print, and many early modern humanists—including those whose names remain familiar—either praised or denigrated them and their work.

What, then, did correctors and readers do?

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