Parts 1-6 are offered for the first time as a six-book set from BYU Studies while supplies last.
Analysis of Textual Variants of the Book of Mormon gives readers detailed access to the central task of Professor Royal Skousen's Book of Mormon Critical Text Project, the most comprehensive effort ever undertaken to recover the original English-language text of the Book of Mormon. The books in this set consider every significant textual change that has occurred in the English Book of Mormon over the 187 years since Joseph Smith first dictated it to his scribes; it also considers a number of conjectural emendations for specific words or passages. These six large books total 4,060 pages.
See more about this project at http://criticaltext.byustudies.byu.edu/volume-iv-analysis-textual-variants-book-mormon.