He authored The Playwright’s Perspective: Innovative Dramaturgy and Its Poetics in Early Modern Spain. (New Orleans: UP of the South, 2010. (ISBN 1-93194-895-1); reviewed in Comedia Performance 9 (2012): 315-17 His research on early modern theater and culture has been published in such journals as the Bulletin of the Comediantes, Hispanófila, Calíope, Comedia Performance, and Catalan Review. Professor Grubbs is currently working on a monograph-length study of the dramatic representations and visual culture associated with Saint Christopher in early and early modern Iberia. His critical edition of Vida y muerte de San Cristóbal by Juan de Benavides is forthcoming in 2018.