Hisako Aoki's family name, Aoki, means "blue tree" in Japanese, and her first name translates as "everlasting." Born in Japan, Ms. Aoki has also lived in Deleware, Salzburg, and Ohio. She has worked in the children's book industry for more than thirty years.
Ivan Gantschev was born in Bulgaria and studied at the Academy of Art is Sophia. He has written and illustrated many children's books.