Did you follow the installation of the Andy Goldsworthy project, Roof, at the National Gallery last spring? It is no longer there and his sculptures tend to be ephemeral, recorded only in photographs.
We have four compilations.
709.2 GOLDSWO Andy Goldsworthy : a collaboration with nature (1990)
709.2 GOLDSWO Hand to earth : Andy Goldsworthy sculpture, 1976-1990 (1993)
709.2 GOLDSWO Time (2000)
709.2 GOLDSWO Passage (2004)
And you can see a film Rivers and Tides: Andy Goldsworthy Working with Time at the National Gallery through December 30th.