Joana Estrela was born in Penafiel, Portugal in 1990. She started drawing family portraits at an early age, writing funny subtitles to go along with them. Her methods haven't changed a lot since--what motivates her to start a book is still the joy that comes with it. She is a graduate of the Faculdade de Belas Artes da Universidade do Porto and has won awards in her home country for both her picture books and her graphic novels.

Lyn Miller-Lachmann is an author, translator, and teacher. Her books for teens and younger readers include Gringolandia, Rogue, Torch, She Persisted: Temple Grandin, and the verse novel Moonwalking, co-authored with Zetta Elliott. She translates picture books and middle grade novels from Portuguese to English. She lives in New York City.