Twenty First Century Books ™ imprint: 58 books

Style can be a flag we wave, a declaration of who we are. Discover awesome tips about understanding your body type so you can build flattering outfits, using colors, shapes, patterns, and accessories to your advantage. Learn how to build self-esteem by busting media myths about beauty standards and...

With the increase in states legalizing marijuana, understanding the debate about marijuana is more important than ever. Learn about the movement to legalize, the arguments on each side, and what it means for patients, state economies, and legal systems. Examine issues including the history of the...

In the United States, racial profiling affects thousands of Americans every day. Both individuals and institutions—such as law enforcement agencies, government bodies, and schools—routinely use race or ethnicity as grounds for suspecting someone of an offense. The high-profile deaths of...

Around the world, from US coastal towns to island nations of the Pacific and the deserts of Africa, people are in danger of losing their homes. Some have already fled. Others know they are running out of time. By 2050, at least 25 million people will be driven from their homes due to the effects of...

A fish that walks on land, a frog that makes its own sunscreen, and an insect that can become invisible? Whether to avoid predators, to stalk prey, or to withstand extreme temperatures, Earth's creatures have evolved some outrageous features and tricks to ensure survival. For example, did you...

Reduce, reuse, and recycle with ideas from The Craft-a-Day Book. You can put the three Rs to work with these thirty awesome crafts! Using recycled and reusable materials from around the house, school, or a thrift store, you'll find directions for making colorful lanterns from paper and jars,...

Trillions and trillions of microbial cells live on and inside your body. A small number of these microbes are unhealthy germs. But most belong on your body and perform essential jobs. Microbes help digest your food, protect you from dangerous germs, and help your body fight disease. Using techniques...

What can communicate but has no mouth, and can attack but has no hands? A plant! You might love the beauty and fragrance of flowers, but plants are far more complex than meets the eye. Some plants have ways of luring insects for pollination. Others mimic the look of the female insects whose male counterparts...

Trees are essential. They provide water, shelter, and food for millions of plant and animal species, including humans. They deliver proven health benefits, and they capture and store carbon, which combats climate change. Yet trees are in trouble. Forests are struggling to adapt to climate change,...

Anyone who texts recognizes "LOL," "2G2BT," and "PRW" as shorthand for "laughing out loud," "too good to be true," and "parents are watching." But did you know that in the 1800s—when your great-great-great-grandparents were alive—telegraph operators used similar abbreviations in telegrams? For...

Japan. March 11, 2011. 2:46 P.M. The biggest earthquake in Japan's history—and one of the world's five most powerful since 1900—devastated the Tohoku region, 320 kilometers (200 miles) northeast of Tokyo. It triggered a huge tsunami that left crippling damage in its wake. More than 13,000 people...

What if neuroscientists could look inside the human brain and watch individual brain cells send signals to one another? What if they could then control these brain cells to direct thoughts and actions? This may sound like science fiction, but it's actually a scientific revolution called optogenetics....

Birds do it, bees do it, penguins do it, and orangutans do it. By having sex and giving birth to offspring, animals ensure that their species will survive into the next generation. And in this quest for survival, animals go to great lengths. Some animal mating techniques may strike you as strange...

Have you ever finished a book or TV series and wished for more? Created stories, art, or videos based on a game? Dressed up as your favorite character? If so, you've entered fandom. Fan writers expand and mix up stories, like sending the Star Trek crew to Hogwarts. Cosplayers sew Star Wars and Sailor...