What are states' rights?

"The Ninth Amendment of the U.S. Constitution's Bill of Rights notes that people have more rights than those listed in the document. And, according to the Tenth Amendment, the federal government has only those powers expressly stated in the Constitution. All other powers are given to the states and the people. This title explores the concept of individual rights and states' rights, defining the terms and examining the ways that these ideas have clashed throughout our nation's history"--Provided by publisher.