The What Do We Know About? series explores the mysterious, the unknown, and the unexplained. Is the Loch Ness Monster really lurking beneath Scottish waters, or is it just a myth? Find out all that there is to know about the most famous aquatic cryptid! Also known as Nessie, this creature of the lake's history dates all the way back to the year 565. Since then, there have been photographs and films that allegedly show proof of the monster's existence. But are they fact or fiction?

Almost everyone can sing along with the Beatles, but how many young listeners know their whole story? Geoff Edgers, a Boston Globe reporter and hard-core Beatles fan, brings the Fab Four to life in this Who Was...? book. Listeners will learn about their childhoods in Liverpool, their first forays into rock music, what Beatlemania was like, and why they broke up. It's all here in an easy-to-listen-to narrative!

Bruce Springsteen grew up in a blue-collar New Jersey town where his parents struggled to make ends meet. Bruce didn't fit in at school but found solace in rock and roll and playing guitar. After the breakup of a local band he'd joined, Springsteen went out on his own, and people began to take notice. He signed with Columbia Records and, under pressure to come up with a hit, wrote "Born in the USA", which tells the story of America during the years of the Vietnam War.

Bob Marley was a reggae superstar who is considered to be one of the most influential musicians of all time. Born in rural Jamaica, this musician and songwriter began his career with his band, The Wailing Wailers, in 1963. The Wailers went on to spread the gospel of reggae music around the globe. Bob's distinctive style and dedication to his Rastafari beliefs became a rallying cry for the poor and disenfranchised the world over and led to a hugely successful solo career.

At 800 feet in length, the Hindenburg was the largest airship ever built - just slightly smaller than the Titanic! Also of a disastrous end, the zeppelin burst into flame as spectators watched it attempt to land in Lakehurst, New Jersey, on May 6, 1937. In under a minute, the Hindenburg was gone; people jumping from windows to escape. However, only 62 of the 97 crew members and passengers onboard survived. The exact cause of the disaster is still unknown and remains a fascinating historical mystery, perfect for this series.

Put on your blue suede shoes and get ready for another addition to the Who Was…? series! The King could not have come from humbler origins: Born in Tupelo, Mississippi, during the Depression, he grew up with the blues music of the rural South, the gospel music of local churches, and the country-western classics. But he forged a sound all his own - and a look that was all his own, too. With curled lip, swiveling hips, and greased pompadour, Elvis changed popular music forever, ushering in the age of rock and roll.

Stevie Wonder is one of the most successful singer-songwriter-musicians of our time. Signing his first record deal when he was only 11, he had his first number one hit when he was 13. Since then he has had 30 US top 10 hits, won a range of awards for his music and his civil rights work, and created such iconic songs as "Isn't She Lovely" and "I Just Called to Say I Love You". Stevie Wonder is a beloved entertainer who continues to tour and perform around the world.

If not for a stint in reform school, young Louis Armstrong might never have become a musician. It was a teacher at the Colored Waifs' Home who gave him a cornet, promoted him to band leader, and saw talent in the tough kid from the even tougher New Orleans neighborhood called Storyville. But it was Louis Armstrong's own passion and genius that pushed jazz into new and exciting realms with his amazing, improvisational trumpet playing. His 70-year life spanned a critical time in American music as well as black history.

Cassius Marcellus Clay, Jr., won the world heavyweight championship at the age of 22, the same year he joined the Nation of Islam and changed his name to Muhammad Ali. He would go on to become the first and only three-time (in succession) world heavyweight champion. Nicknamed "The Greatest", Ali was as well known for his unique boxing style, consisting of the Ali Shuffle and the rope-a-dope, as he was for the catchphrase "float like a butterfly, sting like a bee".

Born in Austria in 1756, Wolfgang Amadeus Mozart composed his first piece of music, a minuet, when he was just five years old! Soon after, he was performing for kings and emperors. Although he died at the young age of 35 Mozart left a legacy of more than 600 works. This fascinating biography charts the musician's extraordinary career and personal life while painting a vivid cultural history of 18th-century Europe.

As a child his passions were comics and cars, but George Lucas grew up to be one of the most successful filmmakers of all time. He is a producer, screenwriter, director, and entrepreneur whose company Lucasfilms pioneered the movie effects that changed the world of animation. He founded Industrial Light and Magic, which transformed special sound and visual effects throughout the Hollywood film industry. He is best known, of course, as the creator of the Star Wars movie, television, gaming, toy and merchandise empire, as well as the archeologist-adventure series Indiana Jones.

You can always recognize a painting by Kahlo because she is in nearly all of them, with her black braided hair and colorful Mexican outfits. A brave woman who was an invalid most of her life, she transformed herself into a living work of art. As famous for her self-portraits and haunting imagery as she was for her marriage to another famous artist, Diego Rivera, this strong and courageous painter was inspired by the ancient culture and history of her beloved homeland, Mexico. Her paintings continue to inform and inspire popular culture around the world.

Like Michelangelo, Galileo is another Renaissance great known just by his first name - a name that is synonymous with scientific achievement. Born in Pisa, Italy, in the 16th century, Galileo contributed to the era's great rebirth of knowledge. He invented a telescope to observe the heavens. From there, not even the sky was the limit! He turned long-held notions about the universe topsy turvy with his support of a sun-centric solar system.

As a kid, Jackie Robinson loved sports. And why not? He was a natural at football, basketball, and, of course, baseball. But beyond athletic skill, it was his strength of character that secured his place in sports history. In 1947 Jackie joined the Brooklyn Dodgers, breaking the long-time color barrier in major league baseball. It was tough being first - not only did "fans" send hate mail but some of his own teammates refused to accept him.

When Derek Jeter was eight years old, he announced that he was going to play baseball for the New York Yankees. Jeter earned the attention of major league scouts in high school and was drafted to the New York Yankees in 1992. Named Rookie of the Year, he helped the Yankees win the World Series five times and became team captain in 2003. With his good looks, easygoing personality, and sense of humor, Derek has always been a fan favorite. Retiring from baseball in 2014, Derek Jeter leaves behind a legacy.