Previously we stated that you can find *almost* all books about Shakespeare in the Dewey number 822.33.
BUT (you say) "I've found a book about Shakespeare in the catalog with the call number 792.028 R687s... What gives?"
See the examples that follow for some of the many situations in which books about Shakespeare may be located in call numbers other than 822.33.
(By the way, 792.028 is the number for 'techniques of acting and performing'. The book is about 'how to speak and act Shakespeare')
Speaking Shakespeare by 
Radical Religion from Shakespeare to Milton by 
An Outward Show: music for Shakespeare on the London stage, 1660-1830 by 
The BBC Shakespeare Plays : making the televised canon by 
Ms-Directing Shakespeare : women direct Shakespeare by 
The Age of Shakespeare by 
Shakespeare and the Authority of Performance by 
O'Neill's Shakespeare by