In the canon of Western literature, William Shakespeare’s First Folio is “the jewel of our house.” Published by the playwright’s colleagues in 1623, just a few years after his death, this extraordinary book contains 36 plays and is the sole source for such immortal works as “Macbeth,” “The Tempest” and “As You Like It.” Without the First Folio, our theater, our culture, our very language would be incalculably impoverished.