These books provide a range of opinions on a social issue; each volume focuses on a specific issue and offers a variety of perspectives, e.g., eyewitness accounts, governmental views, scientific analysis, newspaper accounts, to illuminate the issue.; This title explores possible causes for the recent rise in autism. It looks at improved diaganostics of autism, vitamin deficiencies, and different environmental and behavioral reasons that could lead to autism.; Greenhaven Press's At Issue series provides a wide range of opinions on individual social issues. Enhancing critical thinking skills, each At Issue volume is an excellent research tool to help readers understand current social issues and prepare reports.