ALERT: Before you purchase, check with your instructor or review your course syllabus to ensure that you select the correct ISBN. Several versions of Pearson"s MyLab & Mastering products exist for each title, including customized versions for individual schools, and registrations are not transferable. In addition, you may need a CourseID, provided by your instructor, to register for and use Pearson"s MyLab & Mastering products. Packages Access codes for Pearson"s MyLab & Mastering products may not be included when purchasing or renting from companies other than Pearson; check with the seller before completing your purchase. Used or rental books If you rent or purchase a used book with an access code, the access code may have been redeemed previously and you may have to purchase a new access code. Access codes Access codes that are purchased from sellers other than Pearson carry a higher risk of being either the wrong ISBN or a previously redeemed code. Check with the seller prior to purchase. -- The Essential Cosmic Perspective with MasteringAstronomy®, Sixth Edition retains all of the features that have made this text so popular and effective. New features and updates based on current research will engage you as you learn about astronomy. The textbook package also includes updated supplements to support the book’s pedagogy, making it the most effective text in the one-semester astronomy market. The Sixth Edition includes new visual foldout diagrams on the scale of space and time, a key concept in understanding the scope of the universe and individual objects within it. The book also includes Group Work Exercises to foster active participation in class and peer learning. The Essential Cosmic Perspective, Sixth Edition is supported by MasteringAstronomy–an online homework and self-study system that will help students solidify their understanding and prepare for quizzes and exams, and Voyager SkyGazer College Edition v5.0, a planetarium software package that lets students explore the universe from their computer. Package Includes: MasteringAstronomy with Pearson eText Student Access Kit Voyager: SkyGazer v 5.0 College Edition Student Access Code Card