Uncorrected proof of the first edition, so described on the front cover. Softcover, 20.5 × 13.3 cm, 179 numbered pages....

First Italian edition, first printing with complete numberlines from 0 to 7 and from 1999 to 2002 on a colophon...

First English paperback edition, first printing, with full number line “987654321” on the copyright page. Softcover, 20.1 × 13 cm....

Uncorrected proof of the first English edition. Softcover, 20 x13.6 cm, 301 numbered pages. Light blue wrappers lettered in black...