A perfect introduction to mathematical concepts for young readers, written by a Newbery honor-winning author!This colorfully illustrated biography of the Greek philosopher and scientist Eratosthenes, who compiled the first geography book and accurately measured the globe's circumference, is just right for budding mathematicians, scientists, historians, and librarians! Filled with fascinating details about Eratosthenes's world (and in print since 1994), kids are sure to flip through the pages time and again.

    In Johannesburg, Mandela saw fellow Africans who were poor and powerless. He decided then that he would work to protect them. When the government began to keep people apart based on the color of their skin, Mandela spoke out against the law and vowed to fight hard in order to make his country a place that belonged to all South Africans.Kadir Nelson tells the story of Mandela, a global icon, in poignant verse and glorious illustrations. It is the story of a young boy's determination to change South Africa and of the struggles of a man who eventually became the president of his country by believing in equality for people of all colors. Readers will be inspired by Mandela's triumph and his lifelong quest to create a more just world.

    Louis to the grandest stages in the world. Meticulously researched by both author and artist, Josephine's powerful story of struggle and triumph is an inspiration and a spectacle, just like the legend herself.

    At age 15, she was freed, and by age 20, she was married and had her first child. By age 68, she had worked numerous jobs, including cooking, cleaning, babysitting, and selling sandwiches to raise money for her church. At 114, she was the last remaining member of her family. And at 116, she learned to read. From Rita Lorraine Hubbard and rising star Oge Mora comes the inspirational story of Mary Walker, a woman whose long life spanned from the Civil War to the Civil Rights Movement, and who--with perseverance and dedication--proved that you're never too old to learn.

    King Arthur was a good ruler, but now he needs a good ruler. What would you do if the neighboring kingdom were threatening war? Naturally, you'd call your strongest and bravest knights together to come up with a solution. But when your conference table causes more problems than the threat of your enemy, you need expert help. Enter Sir Cumference, his wife Lady Di of Ameter, and their son Radius. With the help of the carpenter, Geo of Metry, this sharp-minded team designs the perfect table conducive to discussing the perfect plan for peace. The first in Sir Cumference series, SIR CUMFERENCE AND THE FIRST ROUND TABLE makes math fun and accessible for everyone.

    As he reads the information unfolds, and with each new bit of knowledge, he travels--all the way to California to climb into the Redwood canopy. Crammed with interesting and accurate information about these great natural wonders, Jason Chin's first book is innovative nonfiction set within a strong and beautiful picture storybook.

    As a child, she daydreamed about beats and lyrics, and hummed along with the music from her family's Majestic radio. At age seven, Melba fell in love with a big, shiny trombone, and soon taught herself to play the instrument. By the time she was a teenager, Melba's extraordinary gift for music led her to the world of jazz. She joined a band led by trumpet player Gerald Wilson and toured the country. Overcoming obstacles of race and gender, Melba went on to become a famed trombone player and arranger, spinning rhythms, harmonies, and melodies into gorgeous songs for all the jazz greats of the twentieth century: Randy Weston, Duke Ellington, Count Basie, Billie Holiday, and Quincy Jones, to name just a few. Brimming with ebullience and the joy of making music, Little Melba and Her Big Trombone is a fitting tribute to a trailblazing musician and a great unsung hero of jazz.

    One hundred years later, they continue to have adventures, do good deeds, and make a difference!

    Have you seen her?She's in New York. She's holding a torch. And she's in mid-stride, moving forward. But why?In this fascinating, fun take on nonfiction, Dave Eggers and Shawn Harris investigate a seemingly small trait of America's most emblematic statue. What they find is about more than history, more than art. What they find in the Statue of Liberty's right foot is the message of acceptance that is essential to an entire country's creation.

    Illustrated with sumptuous art by rising star Sarah Jacoby, this is essential reading for children's book lovers of every age.

    Henrietta spent years measuring star positions and sizes from photographs taken by the telescope at the Harvard College Observatory, where she worked. After Henrietta observed that certain stars had a fixed pattern to their changes, her discovery made it possible for astronomers to measure greater and greater distances—leading to our present understanding of the vast size of the universe.An astronomer of her time called Henrietta Leavitt “one of the most important women ever to touch astronomy,” and another close associate said she had the “best mind at the Harvard Observatory.” Henrietta Leaveitt's story will inspire young women and aspiring scientists of all kinds and includes additional information about the solar system and astronomy.

    As an adult, she dives even deeper. Whether she's designing submersibles, swimming with the whales, or taking deep-water walks, Sylvia Earle has dedicated her life to learning more about what she calls "the blue heart of the planet." With stunningly detailed pictures of the wonders of the sea, Life in the Ocean tells the story of Sylvia's growing passion and how her ocean exploration and advocacy have made her known around the world. This picture book biography also includes an informative author's note that will motivate young environmentalists.Life in the Ocean is one of The Washington Post's Best Kids Books of 2012

    It was the1930s, and many families had lots of kids. But only one had enough to field a baseballteam . . . with three on the bench! The Acerras were the longest-playing all-brotherteam in baseball history. They loved the game, but more important, they cared forand supported each other and stayed together as a team. Nothing life threw their waycould stop them.Full of action, drama, and excitement, this never-before-told true story is vividlybrought to life by Audrey Vernick’s expert storytelling and Steven Salerno’s stunningvintage-style art.

    Barnum, hoping that he would do something extraordinary--and he did! As a paleonotologist for the American Museum of Natural History, he discovered the first documented skeleton of the Tyrannosaurus Rex, as well as most of the other dinosaurs on display there today.An appealing and fun picture book biography, with zany and stunning illustrations by Boris Kulikov, BARNUM'S BONES captures the spirit of this remarkable man.

    Now it's time for Gyo's story to be told -- a story of artistic talent that refused to be constrained by rules or expectations.Growing up quiet and lonely at the beginning of the twentieth century, Gyo learned from her relatives the ways in which both women and Japanese people lacked opportunity. Her teachers and family believed in her and sent her to art school and later Japan, where her talent flourished. But while Gyo's career grew and led her to work for Walt Disney Studios, World War II began, and with it, her family's internment. But Gyo never stopped fighting -- for herself, her vision, her family and her readers -- and later wrote and illustrated the first children's book to feature children of different races interacting together.This luminous new book beautifully and openly touches on Gyo's difficult experiences and growth. Through Julie Morstad's exquisite illustrations, alternating between striking black-and-white linework and lush colour, and Kyo Maclear's artful and accessible writing, the story of this cherished figure is told at last.