"Each title in the highly acclaimed Opposing Viewpoints series explores a specific issue by placing expert opinions in a unique pro/con format; the viewpoints are selected from a wide range of highly respected and often hard-to-find publications"-- "Opposing Viewpoints is the leading source for libraries and classrooms in need of current-issue materials. The viewpoints are selected from a wide range of highly respected sources and publications"--...

Explores the nature of ghosts and poltergeists and possible earthly explanations for them.

"The national debate over the legalization of marijuana is heating up as states begin to legalize its use for medicinal and recreational purposes. The title in the Greenhaven series deepens the discussion on marijuana-should it be legal or not? Does it help or harm users? Should medicinal use only be allowed? Answers to these questions will be debated for years to come"--

"This title addresses controversies related to The US Libertarian Movement including: What are the issues surrounding contemporary slavery? Is sex trafficking a serious problem? How does legal policy toward sex work affect sex trafficking? How does immigration policy affect human trafficking?" --

"Opposing Viewpoints: Performance-Enhancing Drugs: Opposing Viewpoints is the leading source for libraries and classrooms in need of current-issue materials. The viewpoints are selected from a wide range of highly respected sources and publications"--

Explores both sides of the question of whether or not witchcraft is destructive, looking at issues related to the Harry Potter books, wiccans serving in the military, and the validity of magic.