The introduction explains how new technology, in the form of cheap duplicators and later offset litho allowed much cheaper reproduction of the printed word. This can only get better as the tools to publish become more available. The interview with Christie gives some sense of what was going on in the late 70s and shows how he saw the work of Cienfuegos as connected to the wider movement. It still won't have the widest appeal ever, but it will interest all would-be publishers.
MH
In KSL: Bulletin of the Kate Sharpley Library No. 37, January 2004