Original sentence: Reviewing nonexistent books, a modern form of pseudepigraphy, is not a theme unique to Lem (consider Jorge Luis Borges'  Pierre Menard, Author of the "Quixote" or  An Examination of the Work of Herbert Quain)
Edited sentence: Reviewing nonexistent books, a modern form of pseudepigraphy, is not a theme unique to Lem (consider Jorge Luis Borges'  Pierre Menard, Author of the "Quixote" or  An Examination of the Work of Herbert Quain), but the idea of an entire anthology of such pieces is rather novel