When Marie was young, she was unable to go to college because she was a woman. But when she was older, her scientific work was respected around the world. Her discoveries of radium and polonium dramatically helped in the fight against cancer, and she went on to win the Nobel Prize for Physics!

Maria Isabel Sánchez Vegara, born in Barcelona, Spain, is a writer and creative director in constant search of new concepts for children's books. In 2014, she created a book for her two twin nieces for their birthday, which shortly thereafter became the first book in the Little People, BIG DREAMS series. This multimillion-copy bestselling series of picture books explores the lives of outstanding people. From Mahatma Gandhi to Aretha Franklin, to Prince, Sánchez Vegara researches complex careers and makes them accessible to young children, with her unique and mindful style of writing. She works with a diverse team of illustrators to make each book lively, eye-catching and motivating. Working for more than fifteen years for clients in top advertising agencies, her books combine creativity with learning, aiming to establish a new and fresh relationship between children and pop culture. ​