Each volume published in a limited edition and individually numbered.
No. 1 published in 1998 in an edition of 100 copies; no. 2 published in 2000 in an edition of 125 copies; no. 3 published in 2002 in an edition of 100 copies; no. 4 published in 2004 in an edition of 135 copies; no. 5 published in 2005 in an edition of 200 copies; no. 6 published in 2006 in an edition of 250 copies.