Jeanette Winter has written and illustrated many books for children, including MAMA, The Librarian of Basra, Calavera Abecedario: A Day of the Dead Alphabet Book, My Name Is Georgia, and Josefina.

Greta Thunberg is a climate crisis activist from Sweden. In August 2018, she decided not to go to school one day, starting a strike outside the Swedish Parliament. Her actions sparked a global movement to fight the climate crisis, inspiring millions of students to go on strike for our planet.

Greta has Asperger's and considers it a gift which has enabled her to see the climate crisis in "black and white." She has won the prestigious Prix Liberte, has been nominated for a Nobel Peace Prize, and was selected as Time's Person of the Year in 2019. She is the author of the bestseller No One Is Too Small to Make a Difference.