TWH — “Lord, what fools these mortals be!” the mischievous sprite Puck says to Oberon the faerie king in Shakespeare’s A Midsummer Night’s Dream. Shakespeare was no fool when it came to incorporating the magical and astrological worldviews of his time into his immortal works. That’s the premise of the fascinating, exhaustive (but not exhausting) book Shakespeare and the Stars: the Hidden Astrological Keys to Understanding the World’s Greatest Playwright (Ibis Press, 547 p.) by professional astrologer and English literature teacher Priscilla Costello. Costello weaves not just astrology but extensively-researched aspects of the Elizabethan worldview, Renaissance magic, ancient history, mythology, modern psychology, and more into her examination of Shakespeare’s works. While she discusses the bard’s plays as a whole, Costello delves deep into six specific works, including three of his most “magical” plays: The Tempest (with its story of the exiled nobleman Prospero, who takes up the magical arts and frees the air spirit Ariel), Macbeth (with its “double, double, toil and trouble” witches who prophesy Macbeth’s doom), and A Midsummer Night’s Dream (with its tale of a love quadrangle fostered by a quarrel between Oberon and his faerie queen Titania, and heightened by the errant spell-casting antics of Puck).