A beautifully colored world map of volcanoes, earthquakes, impact craters, and plate tectonics. This updated poster now has information on the reverse side. This allows for more in-depth analysis of the forces that shape our planet. A wonderful addition to any classroom. By T. Simkin, R.I. Tilling, P.R. Vogt, S.H. Kirby, P. Kimberly, and D.B. Stewart. 58" x 44", 2006.