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How can important information and valuable items be kept safe as years pass? Many of these items are stored in underground vaults, including recordings and photos from U.S. history, important documents, and more. Locks, guards, secret passwords, and technology all play a part in the protection of the items.

Nuclear weapon bunkers keep the world's dangerous nuclear weapons safe. Guards, electronic security systems, and barriers protect the bunkers. Learn more about these high-security places!

Slime. Ice cream. Crayons. Kids come across these things and more in everyday life. Bring familiar and favorite nouns to young learners, and watch their vocabularies grow!

What is the U.S. Senate? Learn about senators, how bills become laws, where senators work, and more.

What does the U.S. Supreme Court do? Learn about who can be on the Supreme Court, how they are chosen, where they work, and more. Descriptive main text, fast facts, and callout definitions work together to support understanding.

Red, green, purple, and yellow! Colors make our world so vibrant! Bring color words to young learners, and watch their vocabularies grow!

A boy finds a strange book hidden away in an antique dresser. When he opens it, ancient symbols swirl off the pages. They form a floating, inky mass. The Oldest Trick has been freed from its book! Now the ancient evil has trapped the boy in a fake, nightmarish world. Can the powerful Librarian free the boy by helping him see through the Trick’s lies?

Una noche, una joven estudiante oye un extraño sonido de tragar. Parece provenir de su diccionario de sinónimos. Entonces, de repente, un monstruo colosal se despliega de las páginas del diccionario como una creación de origami que salió terriblemente mal.

President John F. Kennedy was a popular president. On November 22, 1963, he waved to excited crowds from the back of a car as it wound through the streets of Dallas, Texas. Suddenly, gunshots rang out. The president had been shot! He died shortly after. The country had lost its leader.

Follow the adventures of Max Axiom as he explains the science behind photosynthesis.

Someone has broken into the Library of Doom! While searching for the intruder, the Librarian is captured by a shadowy figure the Eraser. He has chained the Librarian to a huge golden book. If the Librarian can't escape, all the world's books could be could be destroyed. Listen to the Spanish audio.

En el corazón de la Biblioteca Maldita, dentro de la cámara secreta del Bibliotecario, hay una bóveda invisible y sellada. Contiene un único libro, un libro tan venenoso que drena la vida del Bibliotecario día a día, año a año. Es el precio que cada Bibliotecario debe pagar, porque si alguien lee la última palabra de la historia, ¡se destruirá el mundo entero! Por eso, cuando el libro desaparece, el Bibliotecario debe localizarlo sin demora. Solo hay un problema: la única persona que puede saber dónde se encuentra el libro es otro Bibliotecario...¿Hay un traidor en la Liga de Bibliotecarios?

A girl follows a group of strangers inside the giant Library of Doom. The strangers want their evil friends released from the pages a pop-up book. Can the Librarian stop them before the world's deadliest criminals are set free?

Follows the adventures of Max Axiom as he explains the science behind volcanoes.

Es tarde por la noche cuando dos amigas se apresuran a volver a casa después de una fiesta de cumpleaños. En el camino, observan una pequeña biblioteca que no estaba allí antes de la fiesta. Cuando abren la pequeña puerta y hojean los libros, ¡sale una garra y las arrastra al interior! Se encuentran atrapadas en un mundo oscuro con una bestia siniestra que tiene predilección por los lectores voraces...

Slate es un escalador de precipicios: una persona que localiza libros específicos en las estanterías con aspecto de rascacielos de las profundidades de la Biblioteca Maldita. Según Slate, él puede encontrar cualquier libro, incluso aquél que ningún Bibliotecario ha podido localizar: EL BORRADOR. Para demostrar su valor, Slate se adentra en las prohibidas Estanterías Negras, un laberinto tan oscuro y frío que el aire absorbe todos los sonidos y no se pueden pronunciar palabras. Pero antes de que Slate pueda localizar el libro hace tanto tiempo perdido, encuentra más de lo que esperaba...

So you want to be a Supreme Court justice? Find out the requirements, the roles and responsibilities, and how you can put yourself on the path to sitting on the highest court in the nation.

So you want to be a U.S. representative? Find out the requirements, the roles and responsibilities, and how you can put yourself on the path to becoming a member of Congress.

Love curling up with a good book? If so, a book club might be the right fit for you. Find out what it takes to join a book club or start your own, including information on membership, meetings, and activities. Together, you and your fellow members can participate, create, and most importantly, have fun.

On September 16, 1965, Filipino and Mexican American migrant workers joined together to strike against the grape growers in Delano, California. The farmers left the fields to demand better wages and benefits. Led by Larry Itliong, Cesar Chavez, and Dolores Huerta, the two groups created a union called the United Farm Workers of America.