ESSENTIALS OF METEOROLOGY: AN INVITATION TO THE ATMOSPHERE, Ninth Edition, is written by the most widely read and authoritative author in introductory meteorology, Donald Ahrens, together with meteorologist and award-winning science writer Robert Henson. Their ability to explain even complicated ideas in a student-friendly way enables both science and non-science majors to visualize and understand important principles of meteorology. The Ninth Editions clear and engaging narrative is supplemented by pedagogical features that encourage observing, calculating and synthesizing information. The authors have included information on recent weather and climate events to enhance interest, and online animations available through MindTap help students understand the underlying meteorological principles. The text also includes suggested activities that involve use of meteorological data, making it easier to assign relevant projects to help students develop critical-thinking and quantitative skills.