Basel Berlin Boston 1999 ISBN 3-7643-6119-0* Edward Lucie-Smith (Intro) and John K. Grande: "Art Nature Dialogues: Interviews with Environmental Artists", New York 2004 ISBN 0-7914-6914-7* David Peat & Edward Lucie-Smith (Introduction & forward) "Dialogues in Diversity", Italy: Pari Publishing, 2007, ISBN 978-88-901960-7-2* Chris Taylor and Bill Gilbert.
Basel Berlin Boston 1999 ISBN 3-7643-6119-0* Edward Lucie-Smith (Intro) and John K. Grande: "Art Nature Dialogues: Interviews with Environmental Artists", New York 2004 ISBN 0-7914-6194-7* David Peat & Edward Lucie-Smith (Introduction & forward) "Dialogues in Diversity", Italy: Pari Publishing, 2007, ISBN 978-88-901960-7-2* Gilles A. Tiberghien: "Land Art".