The only GED preparation program based on results of the current GED Tests The new Steck-Vaughn GED is a result of thorough research and analysis based on examining results from the latest GED Tests. It has more practice tests, more exercise pages, and expanded lessons. Each of the six books(one for every GED testing area) teaches the knowledge, skills, and confidence a GED candidate needs for test-day success -- and the results are guaranteed Explanations of processes in biology, chemistry, and physics. Includes a review of how to read charts, graphs, and diagrams.