To gain a familiarity with the method used in the preparation of the text, the identity of manuscripts compared, etc., you are welcome to read the introduction of the 1904 edition, published here in Greek, but supported also by a rather extensive summary in English, right after the first introductory text of the volume.
The current edition is illuminated with images of Byzantine manuscripts, photos of churches in Athos Holy Mount and in other places in Greece, Orthodox Icons and various Orthodox drawings.