Annotation could be seen in the Folio, showing influences of the playbooks and manuscripts to the Folio text which contributed to the authenticity of the canon. Take Measure for Measure as an example. Two key elements have already been identified in Measure for Measure, the presence of act division in a play written for performance and the signs that profanity has been removed from plays written for performance(Jowett, 2007, p.78). This could be the evidence of Folio texts’ annotation of the manuscript or actors’ playbook. Moreover, theatrical elements have also been added to A Midsummer Night’s Dream. Although A Midsummer Night’s Dream is considered as a reprint of Pavier’s 1619 quarto, the copy still received light annotation by the printers,