Millions of people in the U.S. and around the world have tried ecstasy, which has gained popularity as a party or club drug and is frequently sold and consumed at raves, festivals, and electronic and dance music concerts. Use of this illegal drug can cause dangerous health conditions like hyperthermia (overheating), as well as seizures and even death. Ecstasy is one of ten titles in the Young Adult Drug Library series. Nine titles spotlight a major drug or type of drug (such as painkillers); discuss the negative physical and mental effects of the addiction on the addict and the potential benefits of their use (for certain legal drugs); and provide an overview of treatment strategies for the addiction. The last title, Facts & Figures, provides readers with the "big picture" regarding drugs, including their pros and cons; how they are made, distributed, sold, and used; why they are abused or misused; and treatment options for those who become addicted. Stories of those who are battling drug addiction are also featured in the series in order to humanize these issues.