1. Overview of the geology and tectonics of UHPM / R.G. Coleman and X. Wang -- 2. Experimental and petrogenetic study of UHPM / H.-J. Massonne -- 3. Principal mineralogic indicators of UHP in crustal rocks / C. Chopin and N.V. Sobolev -- 4. Structures in UHPM rocks: A case study from the Alps / A. Michard, C. Henry and C. Chopin -- 5. Creation, preservation, and exhumation of UHPM rocks / B.R. Hacker and S.M. Peacock -- 6. The role of serpentinite melanges in the unroofing of UHPM rocks: An example from the Western Alps of Italy / M.C. Blake, Jr., D.E. Moore and A.S. Jayko -- 7. Ultra-high-pressure metamorphic rocks in the Western Alps / R. Compagnoni, T. Hirajima and C. Chopin -- 8. HP and UHP eclogites and garnet peridotites in the Scandinavian Caledonides / E.J. Krogh and D.A. Carswell -- 9. Microcoesites and microdiamonds in Norway: An overview / D.C. Smith -- 10. UHPM terrane in east central China / X. Wang, R. Zhang and J.G. Liou.