Book excerpt: Sabrina Feldman manages the Planetary Science Instrument Development Office at the NASA Jet Propulsion Laboratory. Born and raised in Riverside, California, she attended college and graduate school at the University of California at Berkeley, where she enjoyed the wonderful performances of the Berkeley Shakespeare Company, studied Shakespeare's works for a semester with Professor Stephen Booth, and received a Ph.D. in experimental physics in 1996. She has worked on many different instrument development projects for NASA, and is the former deputy director of JPL's Center for Life Detection. Her scientific training, combined with a lifelong love of literature and all things Shakespearean, gives her a unique perspective on the Shakespeare authorship mystery. Dr. Feldman lives in Pasadena, California with her husband and two children. This is her first book. If William Shakespeare wrote the Bard's works... Who wrote the Shakespeare Apocrypha? During his lifetime and for many years afterwards, William Shakespeare was credited with writing not only the Bard's canonical works, but also a series of 'apocryphal' Shakespeare plays. Stylistic threads linking these lesser works suggest they shared a common author or co-author who wrote in a coarse, breezy style, and created very funny clown scenes. He was also prone to pilfering lines from other dramatists, consistent with Robert Greene's 1592 attack on William Shakespeare as an "upstart crow." The anomalous existence of two bodies of work exhibiting distinct poetic voices printed under one man's name suggests a fascinating possibility. Could William Shakespeare have written the apocryphal plays while serving as a front man for the 'poet in purple robes, ' a hidden court poet who was much admired by a literary coterie in the 1590s? And could the 'poet in purple robes' have been the great poet and statesman Thomas Sackville (1536-1608), a previously overlooked authorship candidate who is an excellent fit to the Shakespearean glass slipper? Both of these scenarios are well supported by literary and historical records, many of which have not been previously considered in the context of the Shakespeare authorship debate.