'Most of the [Galactic Central] bibliographies are produced as A5 booklets, photocopied and side-stapled, although some of the more recent publications have been perfect-bound. The intention is to keep all bibliographies permanently in print at all times and to offer them at a price that the average (impoverished) fan can afford.
'The scope of the bibliographies has grown considerably over the years. Initially only primary works of fiction in the English language were included, but 90% of the volumes now have a standard format containing seventeen separate sections including items such as poems, articles, and series as well as extensive coverage of secondary material. Unique to this series (as far as we know) is a section listing "phantom titles" that have either been announced but not published or, at some time, have been erroneously credited to the subject of the bibliography.
'Coverage of translations into languages other than English has also grown over the years and recent bibliographies contain comprehensive of translations into most major European languages' (Galactic Central Publications).
