We need proofreaders! Digital processing of books is still a difficult task because errors other than those of the author can be introduced. Proofreading consists in:
NB: It is a long and heavy work. Do it only if you are sure to conclude! Its is better to proofread carefully a few pages than to proofread badly the whole book.
NB: Knowledge progress since the work was published may prove that the author was wrong. This is not a “mistake” that deserves correction however.
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