By popular demand, an A8 version of the third edition has been produced. A8 is the size you get when you fold an A4 sheet of paper in half four times. This is pretty small, about 5 cm wide and 7.5 cm tall. The text is readable, but would not be a good choice for study. It is intended to be a collector's edition.

The text in the A8 version is the same as in the standard version except that all known errors have been corrected and a bonus table, showing some decimal places of ζ(3), is included in the back. Only 30 copies have been printed so this is a very limited edition.