Twenty First Century Books ™ imprint: 58 books

Decades of commercial whaling nearly decimated a variety of whales considered a keystone species. Keystone species are indicators of the overall health of Earth's habitats. While whales have made a comeback through an international ban on commercial whaling, they are still threatened with extinction....

Soon after the sexual misconduct allegations against film producer Harvey Weinstein became public in late 2017, the #MeToo movement went viral, opening up an explosive conversation about rape culture around the globe. In the US, someone is sexually assaulted every 98 seconds. More than 320,000 Americans...

For most of human history, the garments women wore under their clothes were hidden. The earliest underwear provided warmth and protection. But eventually, women's undergarments became complex structures designed to shape their bodies to fit the fashion ideals of the time. In the modern era,...

For thousands of years, marriage was a business transaction between two families. Fathers chose husbands for their daughters to build power, wealth, and social status. Rules about acceptable spouses were strict. Interfaith and interracial marriages were often forbidden. Over the centuries,...

How close are we to having another worldwide health crisis? Epidemiologists predict that another pandemic is coming—one that could kill hundreds of millions of people. Learn about factors that contribute to the spread of disease by examining past pandemics and epidemics. Examine case studies of...

Suicide is among the top three causes of death for young people ages 15 to 24. In fact, this global epidemic claims 41,000 lives per year in the United States alone. Suicide touches people of all ages—from those who consider and attempt suicide to those who lose a loved to suicide. Yet silence often...

Drug overdosing and death from prescription painkillers and heroin are at epidemic levels in the United States. How do people become addicted to opioids and other dangerous drugs, and why? Meet the experts who study the neurology of addiction. Hear stories of addicts in recovery, and of loved ones...

While in a war zone, a military working dog (MWD) and its handler live together, eat together, play together, sleep together, and risk their lives for each other every day. The dogs work with handlers in every branch of the US military. They guard military bases, sniff out concealed explosives and...

Vaccines are biological substances that cause the human immune system to build up its defenses against specific diseases. Public health officials recommend a series of vaccines for all children, as well as some vaccines for teenagers and adults. But not everyone gets the vaccines they need. Many poor...

The United Nations supports a compelling solution to world hunger: eat insects! Explore the vast world of unexpected foods that may help solve the global hunger crisis. Weeds, wild plants, invasive and feral species, and bugs are all food for thought. Learn about the nutritional value of various plant...

Most scientists agree that Earth is warming rapidly. Glaciers are melting and rising seawaters are submerging islands and coastal cities. In the coming decades, millions will likely have to escape extreme weather caused by climate change. Some scientists say we need to act faster and with radical...

"Trafficking thrives in the shadows. And it can be easy to dismiss it as something that happens to someone else, somewhere else. But that is not the case. Trafficking is a crime that involves every nation on earth, and that includes our own."—US secretary of state Hillary Rodham Clinton, 2009 Human...

Until the mid-1990s, scientists only guessed that the universe held exoplanets, or planets beyond our solar system. But using advanced physics and powerful telescopes, scientists have since identified more than three thousand exoplanets. This work has revealed fascinating worlds, including a planet...

Meet the science experts who study specimens of extreme longevity in both the plant and animal kingdoms, such as the 80,000-year-old root system of Pando (a colony of male quaking aspens), 11,000-year-old deep-sea sponges, and 400-year-old sharks. Learn about technologies used to determine age and...