Most think nowadays that Shakespeare was really a theatre manager and actor - as the few references to him, by contemporaries, relate.
There's no mention of his works by these fellow thespians (mainly) - nor in Shakespeare's will, which was poorly constructed by him.
Notes, comments, drafts of his are non-existent - and his name is spelt differently in every signature available. But the paper trail is minuscule - unlike most high output authors.
Research would have been critical for the historical works, for instance - but there are no records for it; but plenty for his property investment activities, and theatre management/productions.
All of Shakespeare's family were illiterate - and there is no evidence that William was really literate at all. Or for any education whatsoever.
