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. -- Updated in a new 2nd edition, Understanding American Politics and Government provides students with a substantive foundation on the fundamentals of our government while enlisting them to become more discerning consumers of political information, better decision-makers and more effective citizens. Using a journalistic, example-rich narrative, this unique text schools students in the building blocks of good social science by distinguishing between the concepts of “correlation” and “causation.” *The Alternate version of this text does not contain the policy chapters found in the National version*