Reviews several books. 'Talking With Angels. John Dee and the End of Nature,' by Deborah Harkness; 'The Alchemy of Light. Geometry and Optics in Late Renaissance Alchemical Illustration,' by Urszula Szulakowska; 'Seeing the Word. John Dee and Renaissance Occultism,' by Hakan Hakansson; 'The Queen's Conjurer. The Science and Magic of Dr. John Dee, Adviser to Queen Elizabeth I,' by Benjamin Woolley.