TheGeoscience Animation Library(GAL), Fifth Editionoffers over 100 animations that will help you understand the most difficult-to-visualize topics in physical geology, physical geography, oceanography, meteorology, and earth science. Available on CD-ROM, the animations are provided as Flash files and pre-loaded into PowerPointreg; slides for both Windows and Mac. This library was created through a unique collaboration among Pearson Prentice Hallrs"s leading geoscience authors-including Robert Christopherson, Darrel Hess, Frederick Lutgens, Aurora Pun, Gary Smith, Edward Tarbuck, and Alan Trujillo.