Stephen Marshak’s bestselling text and media make geology easy for students to understand.Essentials of Geology, Fifth Edition, integrates Marshak’s popular and proven text approach with exciting new media and assessment resources that guide students to a clearer understanding of the course material. Marshak has personally applied his expertise, with an emphasis on the visuals, to this robust suite of videos, animations and simulations, art, and interactive assessment questions that get students seeing and engaging with geologic concepts as a geologist would.