Learning from Media: Arguments, Analysis, and Evidence: Second Edition - Paperbackby Richard E. Clark (Editor) Richard Clark's observation that " media are mere vehicles that deliver instruction but do not influence student achievement any more than the truck that delivers our groceries causes changes in our nutrition" is as misunderstood today as it was when first published in the Review of Educational Research in 1983. The convincing if little read scientific evidence presented by Clark has divided the field and caused