Wirsén’s black-and-white illustrations are full of spark and life, complementing the story’s quirky aspect. A sparkling story that honors the sensibilities and world of young schoolchildren. -- Kirkus Reviews "Hattie and Olaf" is an impressively original, deftly written, and charmingly entertaining novel by author/storyteller Firda Nilsson that is nicely illustrated with black-and-white sketch art by illustrator Stina Wirsen. -- Midwest Book Review, Children's Bookwatch Hattie and Olaf is a heartwarming and hilarious addition to a series I love. I can’t wait to see what Frida Nilsson does next! -- Readings Bookshops
