Campbell Essential Biology, Fourth Edition provides effective solutions to the challenges faced by instructors and their students in the non-majors biology course.    1. Three themes (relevance, process of science and evolution) found at the beginning, middle and end of every chapter give students a memorable framework to take with them into the future.    2. One compelling topic anchors the three book themes in each chapter to emphasize how biology is highly relevant.    3. The book is designed from the ground up to teach biology to a wide range of students.    4. The new edition is designed to increase student participation and accountability. Campbell Essential Biology, Fourth Edition...our solutions to your course challenges CourseSmart textbooks do not include any media or print supplements that come packaged with the bound book.