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.

    Filled with archival photographs and amazing fact boxes, this groundbreaking series introduces young readers to some of history's most interesting and influential characters.Supports the Common Core State Standards.

    Their creations are some of the most enduring (the windshield wiper) and best loved (the chocolate chip cookie). What inspired these women, and just how did they turn their ideas into realities?Features women inventors Ruth Wakefield, Mary Anderson, Stephanie Kwolek, Bette Nesmith Graham, Patsy O. Sherman, Ann Moore, Grace Murray Hopper, Margaret E. Knight, Jeanne Lee Crews, and Valerie L. Thomas, as well as young inventors ten-year-old Becky Schroeder and eleven-year-old Alexia Abernathy. Illustrated in vibrant collage by Caldecott Honor artist Melissa Sweet.

    What began as an attempt to make army hospitals safer and more effective became a lifelong mission, and remains relevant today. This new picture book biography of Florence Nightingale, from celebrated author and artist Demi, beautifully portrays the story of Florence's life and explores the long-lasting effects of her career.

    Some women could be teachers or seamstresses, but career options were few. Certainly no women were doctors. But Elizabeth refused to accept the common beliefs that women weren’t smart enough to be doctors, or that they were too weak for such hard work. And she would not take no for an answer. Although she faced much opposition, she worked hard and finally—when she graduated from medical school and went on to have a brilliant career—proved her detractors wrong. This inspiring story of the first female doctor shows how one strong-willed woman opened the doors for all the female doctors to come.

    Fast forward three years to the present, Rachel has transformed "Rugmo and the Other Side of the Fence," to "A Wolf Pup's Tale;" a beautifully illustrated, enchanting children's book. It is a story about a young wolf pup, whose curiosity leads him to discovery, danger, and friendship.

    In 1891, Reverend Daniel Joseph Jenkins opened his orphanage in Charleston, South Carolina. He soon had hundreds of children and needed a way to support them. Jenkins asked townspeople to donate old band instruments, some of which had last played in the hands of Confederate soldiers in the Civil War. He found teachers to show the kids how to play. Soon the orphanage had a band. And what a band it was.The Jenkins Orphanage Band caused a sensation on the streets of Charleston. People called the band's style of music ""rag," a rhythm inspired by the African-American people who lived on the South Carolina and Georgia coast. The children performed as far away as Paris and London, and they earned enough money to support the orphanage that still exists today.

    He amassed enough noteworthy acccomplishments to cover the entire alphabet from A to Z. This nontraditional tribute has information about a Founding Father who was as amusing as he was amazing.

    Since he was a young boy, Jean longed to be a pirate, and with the help of his brothers and uncle, he became one when he was just a teenager. Soon the only life he knew was on the high seas—a life full of glory, riches, disaster, and revenge. When he finally settled down in New Orleans, he managed to become a successful businessman and respected citizen, while still pirating. He even helped the United States win the War of 1812 when he alerted the U.S. government to a British plot to invade via New Orleans. With the help of Laffite and his pirates, General Andrew Jackson was able to beat back the British. Praise for Jean Laffite: "Move over, Jack Sparrow, and make way for Jean Laffite. This well-informed narrative gives readers a sense of what was happening in the world at the time as well as what it was like to be a real pirate."--School Library Journal"Cinematic illustrations by Jeff Himmelman add to the excitement. Filled with fascinating facts and dynamic pictures, Jean Laffite: The Pirate Who Saved America is sure to captivate both pirate-loving children and their parents, as well."--Jewish Book Council

    Her parents separated when she was young, and her mother insisted on a logic-focused education, rejecting Byron’s “mad” love of poetry. But Ada remained fascinated with her father and considered mathematics “poetical science.” Via her friendship with inventor Charles Babbage, she became involved in “programming” his Analytical Engine, a precursor to the computer, thus becoming the world’s first computer programmer. This picture book biography of Ada Lovelace is a portrait of a woman who saw the potential for numbers to make art.

     After receiving a stuffed animal chimpanzee for her first birthday, Jane Goodall's love of animals only grew. She saw what humans and animals had in common, not what makes us different, and used that to advocate for animal rights everywhere, becoming famous for her work with chimpanzees.This friendly, fun biography series inspired the PBS Kids TV show Xavier Riddle and the Secret Museum. One great role model at a time, these books encourage kids to dream big. Included in each book are:- A timeline of key events in the hero's history - Photos that bring the story more fully to life - Comic-book-style illustrations that are irresistibly adorable - Childhood moments that influenced the hero - Facts that make great conversation-starters - A character trait that made the person heroic and that readers can aspire toYou'll want to collect each book in this dynamic, informative series!

    They're brave. They're bold. They changed the world. Did you know that WIFI was invented by a glamorous Hollywood star?Or that the first computer programmer was a woman born in 1816? These amazing little leaders have changed the world, all because they were talented, clever, and above all, determined.In the follow up to her beloved debut Little Leaders: Bold Women in Black History, Vashti Harrison introduces little readers to even more trailblazing women, from writers to inventors, artists to scientists.Discover inspirational heroines like:Zaha Hadid Hedy LamarrWangari MaathaiMary Blair Chien-Shiung Wu Frida Kahlo With beautiful illustrations and incredible stories, this is the perfect book for every future leader.

    Since inventing begins with experimenting, Frank spends a lot of time in his “laboratory” (i.e. his back porch) trying out his ideas, such as building a double-handled handcar that whizzes past the single-handled cars in his neighborhood. What Frank loves most, though, is experimenting with liquids. When he invents his own yummy flavored soda water drink, his friends love it! And this gets him to thinking: “I wonder what this drink would taste like frozen?” Though he doesn't yet realize it, his curiosity will lead to his best invention ever: the Popsicle!In this innovative picture book, Anne Renaud tells a lively story inspired by a real person and true events. Budding scientists will be inspired to emulate the way Frank follows his curiosity, works hard and never gives up --- a growth mindset in action. Interwoven within the story are full-page illustrated instructions for four science experiments that Frank performs, so readers can try them at home or school. Thoroughly researched back matter provides additional historical notes, photos and a bibliography. This readable book covers social studies topics including early twentieth-century history and inventions and inventors, as well as science topics, such as simple chemistry experiments and an overview of the skills and strategies of scientific inquiry.

    Fascinated by animals, bugs, and crustaceans, Turner studied their lives. When books didn't answer his questions, he researched, experimented, and looked for answers on his own, even when faced with racial prejudice. Author Janice Harrington and artist Theodore Taylor III capture the life of this scientist and educator, highlighting his unstoppable curiosity and his passion for insects and biology. The extensive back matter includes an author's note, timeline, bibliography, source notes, and archival images.

    "Once you are aware of the wonder and beauty of earth, you will want to learn about it," wrote Rachel Carson, the pioneering environmentalist. She wrote Silent Spring, the book that woke people up to the harmful impact humans were having on our planet.