The Physical Universe, 17e by Konrad Krauskopf and Arthur Beiser is an outstanding text with a long history. For the 17th edition, real student data points and input, derived from thousands of our LearnSmart and SmartBook users, were used to guide the revision. Heat Maps provided clear visual snapshots of usage of portions of the text and the relative difficulty students experienced in mastering the content. This data was used to direct many of the revisions for this new edition. Of course, many updates have also been made according to changing scientific data, based on current events and so forth. Aimed at presenting the essentials of physics, chemistry, earth science, and astronomy in a clear, easy-to-understand way, The Physical Universe shows students how science works, how scientists approach problems, and why science constantly evolves in its search for understanding.