Max Velthuijs was a celebrated Dutch illustrator, painter, and author best known for his beloved Frog picture book series. Although he began illustrating children’s books relatively late in life, his work quickly gained international acclaim. His first major success came with A is een aapje in 1964, and he achieved global recognition with Frog in Love, published in 1989 by Andersen Press after it was initially rejected in Europe. The Frog series, which eventually included over twenty titles, became known for its gentle, heartfelt storytelling and philosophical depth, earning Velthuijs comparisons to modern-day fables.
Throughout his career, Velthuijs collaborated with prominent publishers and saw his books translated and performed in various media, including theater. In 2004, he was awarded the Hans Christian Andersen Medal for writing—one of the highest honors in children’s literature—for his enduring contribution to the field. In his acceptance speech, Velthuijs humbly reflected on the emotional complexity of his characters, acknowledging the mystery of creative inspiration. He passed away in his hometown of The Hague in 2005.