Knöl & Bök: Kissolyckan och Monstertoaletten is a hilarious and heartwarming children's book about two friends who have a potty training adventure. The book is perfect for young children who are just starting to learn about potty training. It is a great way to help them understand the process and make it a fun and positive experience. Knöl & Bök: Kissolyckan och Monstertoaletten is a Swedish children's book by Tina Engström and Millis Sarri. This book is sure to provide hours of laughter and learning for your little one!