Hungarian American biochemist Katalin Kati Karikó became fascinated by science as a child and grew up determined to find a way to use messenger RNA—a copy of a part of DNA that provides cells with instructions to make proteins—to help fight illness. An mRNA vaccine had never been made before, and she faced frequent criticism and was told by other scientists she would never succeed. Karikó refused to give up her research, and when the COVID-19 pandemic hit, she played a critical role in developing the successful Pfizer-BioNTech mRNA vaccine faster than any other vaccine in history.

Film and TV star Keke Palmer tenderly shares the Ojibwe folk tale of the first dreamcatcher and shows how its message of our connection to the natural world persists to this day. Bedtime stories are narrated by the world’s most celebrated voices and written with no beginning, middle, or end so you don’t stay up to hear what happens next. They're interesting enough to give your mind something to focus on, but delivered in a way that encourages sleep.

This audiobook, abridged and adapted by Jim Weiss, conveys Mark Twain's humorous tale of childhood and adventure. In one of America's most beloved stories, young Tom Sawyer shares silly and serious adventures with his pals Huckleberry Finn and Becky Thatcher. Mark Twain's wise and witty observations of human nature are ever-present in this humorous and beloved classic of childhood friendship and adventure.

Have you ever wondered what a fraction or percentage means and how they are related? Basic principles of fractions, decimals, and percentages and how to apply them to other forms of mathematics are explained through informative and engaging content in this new addition to the How Do series. The How Do series is a great introduction to various STEM topics, each presented in a format that encourages audiences to ask questions and guess the answers before exploring the science behind them.

Timeless Tales for Kids is an enchanting compilation of children's classic stories read by an all-star cast. Olivia Colman reads E. Nesbit's classic novel The Railway Children, a masterpiece in children's fiction wonderfully evoking a bygone age, packed with fun, excitement and adventure. Bill Nighy reads a much-loved children's classic, The Wonderful Wizard of Oz, which continues to delight young and old with its enchanting tale of witches, flying monkeys and magical shoes.