Joanna Concejo was born in 1971 in Słupsk. She spent her childhood in the country in Western Pomerania. She received a degree in drawing and illustration at the University of Fine Arts in Poznań in 1998. She published her first book in 2007 entitled “Il Signor Nessuno” (“Mr. Nobody”) with an Italian publishing house Topipittori, which she has cooperated with until now. Since then, she has published books in France, Spain, Italy, Poland, and South Korea.