Kristiina Kass is a beloved Estonian children’s author, illustrator, and screenwriter whose imaginative and heartfelt stories have delighted young readers for years. Her works stand out for their clever plots, warm humor, and a unique ability to capture the joys and challenges of childhood. Kass has published numerous bestselling children’s books, many of which have become modern classics in Estonian children's literature.

One of her most well-known works is “Samueli võlupadi” (“Samuel’s Magic Pillow”), a captivating story about a boy whose pillow turns out to have magical powers. The book has won the hearts of readers with its imaginative world and touching narrative. Another highly popular title is “Käru Kaarel” (“Kaarel and His Cart”), a humorous and tender story about a boy with a cart and a very strong-willed character. This charming tale has become a favorite among young readers thanks to its simplicity, wit, and relatable warmth.

Kristiina Kass also illustrates many of her own books, giving them a distinctive visual style. Her works have been translated into multiple languages and received numerous accolades. She is recognized as an author whose writing combines childlike joy with literary craftsmanship.