"For centuries, people misunderstood how the heart works. Even as organ transplants became more common, heart transplants remained dangerous. But small groups of pioneering doctors attempted this difficult surgery, changing the lives of patients"--

On June 1, 1937, famous pilot Amelia Earhart and her navigator, Fred Noonan, took off in their small plane. Earhart's goal was to make a record-breaking flight around the world. On the last part of the flight, they approached Howland Island to refuel. Before they could land, radio communication from Earhart stopped, and the plane disappeared. Search efforts turned up few clues. What happened to Earhart and Noonan? Explore the theories and learn why their disappearance has become one of history's greatest mysteries.

On June 1, 1937, famous pilot Amelia Earhart and her navigator, Fred Noonan, took off in their small plane. Earhart's goal was to make a record-breaking flight around the world. On the last part of the flight, they approached Howland Island to refuel. Before they could land, radio communication from Earhart stopped, and the plane disappeared. Search efforts turned up few clues. What happened to Earhart and Noonan? Explore the theories and learn why their disappearance has become one of history's greatest mysteries.

Bacterial infections are a constant threat to human health. Antibiotics stop a bacterial infection from multiplying. They help treat pneumonia, strep throat, and many other infections. But before antibiotics, treatments for these diseases were limited or misguided. In 1929, the accidental discovery of the first antibiotic, a bacteria-killing liquid called penicillin, kicked off a medical revolution. The use of this new treatment has saved countless lives from World War II soldiers and to modern hospital patients. Explore current issues in antibiotics and the best ways to fight bacteria in this graphic history.

A highly secure military base sits in the middle of the Nevada Desert. What happens inside is kept top secret. Many UFO sightings have been reported nearby. Some people even say alien bodies are stored there. What really goes on behind its highly guarded fences? Explore the theories and learn why Area 51 has become one of history's greatest mysteries.

A highly secure military base sits in the middle of the Nevada Desert. What happens inside is kept top secret. Many UFO sightings have been reported nearby. Some people even say alien bodies are stored there. What really goes on behind its highly guarded fences? Explore the theories and learn why Area 51 has become one of history's greatest mysteries.

Cell phones allowed people to connect on the go, and smartphones have transformed the way we share information. From the earliest landlines to the minicomputers that link people across the world, discover the shifts in phone technology that shaped modern communication--and the people who made them happen. This graphic history also shows readers the big changes in design, size, and battery life that took place before mobile phones hit the center of popular culture.

Located on an island in San Francisco Bay, Alcatraz was once considered one of the country's most secure prisons. But that didn't stop three prisoners from making a daring escape the night of June 11, 1962. They set sail across the bay on a homemade raft made of raincoats. Then they vanished. What happened to them? Explore the theories and discover why their escape has become one of history's greatest mysteries.

Earth is home to trillions of germs. But for most of human history, people didn't know germs existed! Healers of the past had different ideas about illnesses and their cures. They blamed illnesses on other causes and sometimes tried dangerous treatments. The invention of tools such as the microscope changed everything, allowing doctors and scientists to see germs and study their effects. This vivid graphic history profiles the people who helped discover germs. Discover the ongoing breakthroughs in research--and germs' surprising benefits for safety and sustainable energy.

For decades, the blasts and howls of the electric guitar have been some of the defining sounds of popular music. But more than a century of effort and innovation had to happen before this instrument went electric. Learn about the master craftspeople who created the guitar as we know it, the inventors who figured out how to send guitar notes through amplifiers and give the guitar a bigger sound, and the musicians whose legendary playing put it at the center of rock 'n' roll.