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Unexplained (Alternator Books™)

This absorbing series explores high-interest paranormal topics for middle grade readers. From ghostly specters to spontaneous human combustion, each title searches for answers to explain mysterious and fascinating phenomena.

United States Presidents, The (Checkerboard Library)

Learn about the individuals who have held this important office in the United Stated Presidents series. Each book explores one president?s childhood, time in office, accomplishments, and legacy. Discover what it takes to be presidents, how a president is elected, and how the US Government works. Read this series to experience history through the leaders who shaped it.

Universe Is a Tree, The

This collection of stories, proverbs, and poems about trees from around the world reveals that a tree's roots not only go down deep into the earth, but its branches also reach up and out into the universe, connecting us all.

Unnatural Disasters: Human Error, Design Flaws, and Bad Decisions (21st Century Skills Library)

Human modification of the environment always carries a risk of accident and folly. With this series, young readers explore the causes and consequences of some of the most major environmental catastrophes of the past 100 years. Guided by compelling questions such as, ""What led to these disasters?,"" ""Who was impacted by them?,"" and ""What changed in their aftermath?"" this interdisciplinary series blends social studies and science content. Ultimately, it pushes students to consider how humans

Unofficial Guides (21st Century Skills Innovation Library)

The Unofficial Guides series explores the various aspects of today's most popular games and programs including Apex Legends, LEGO Mindstorms, Fortnite, Minecraft, Animal Crossing, Among Us and more! Each collection covers topics ranging from basic to advanced. This series is perfect for the hands-on techie.

Unspeakable: The Tulsa Race Massacre

Celebrated author Carole Boston Weatherford and illustrator Floyd Cooper provide a powerful look at the Tulsa Race Massacre, one of the worst incidents of racial violence in our nation's history. The book traces the history of African Americans in Tulsa's Greenwood district and chronicles the devastation that occurred in 1921 when a white mob attacked the Black community. News of what happened was largely suppressed, and no official investigation occurred for seventy-five years. This picture boo

Unsung Heroes

Unsung Heroes shines a spotlight on underrepresented voices throughout history. Featuring racial minorities and other marginalized contributors who are routinely left out of history books, this biography series examines the work of professionals throughout US history and in the fields of science, technology, and social justice. Each book profiles 12 individuals and their impressive contributions as well as the challenges they faced.

Unwritten

In this fantasy middle-grade novel, twelve-year-old storybook character Gracie Freeman lives in the real world but longs to discover what happened in the story she came from. When she finally gets her chance, the truth isn't what she was expecting.

Upfront Health (21st Century Skills Library)

For young people, leading a healthy lifestyle requires education and empowerment. In the Upfront Health series, readers will explore the social aspects and health effects of common issues they and their peers are facing, and ways to make healthy choices. Side bars challenge and expand readers' thinking while relating topics to 21st Century skills and themes--from creativity and innovation to financial literacy.

Vaccine Wars:When Science and Politics Collide

Vaccines have been one of the most important public health breakthroughs of the last century. Yet despite their ability to save lives, vaccines have become the objects of fear-mongering and fake science. From the groundbreaking polio vaccine to the COVID-19 vaccines produced in record time, Vaccine Wars: When Science and Politics Collide examines why these remarkably successful drugs remain so controversial.