I'm looking for a thorough, perhaps measure-by-measure, analysis of Bach's Art of the Fugue (Die Kunst der Fuge, BWV 1080). Is there a book, journal article, thesis, or dissertation which does this?
Laurence Dreyfus, Bach and the Patterns of Invention (Cambridge, MA: Harvard University Press, 1996)
David Yearsley, Bach and the Meanings of Counterpoint (Cambridge: Cambridge University Press, 2010)
Peter Schleuning, Johann Sebastian Bachs Kunst der Fuge: Ideologie, Entstehung, Analyse (Munich: DTV, 1993)
Heinrich Adel, Bach's Die Kunst der Fuge: a living compendium of fugal procedures, with a motivic analysis of all the fugues (Lanham, MD: University Press of America, 1993)
Göncz, Zoltán; Laki, Péter; Mészáros, Erzsébet, Bach's testament: On the philosophical and theological background of The art of fugue (Lanham, MD: Scarecrow Press, 2013)
For hundreds more citations, visit http://www.rilm.org, the international catalog of literature about music.
if you are looking for something you can source, maybe https://www.ocf.berkeley.edu/~repercus/wp-content/uploads/2011/08/repercussions-Vol.-9-No.-1-Markham-Michael-The-Usefulness-of-Such-Artworks.pdf
a website that might be informative, http://www.flagmusic.com/aof.php?r=aof_c_ii