Here are some fairy tale books suitable for adults: 1. Andersen's Fairy Tales: This is a series of classic fairy tales, including The Little Mermaid, The Ugly Duckling, etc. These works have been translated into many languages and are loved by readers all over the world. 2 Grimm's Fairy Tales: This is a collection of fairy tales written by Germany Grimm and William Grimm, including Cinderella, Little Red Riding Hood, etc. It is also suitable for adults to read. The Little Prince: This is a French story about friendship, love, responsibility and other topics from the perspective of a prince. It is also very suitable for adults to read. As for Peter Bunny and His Friends, its age range varied according to the different versions. Some versions are suitable for children aged 8-12 while others are suitable for children aged 6-10. However, many of the stories and plots in this book were suitable for adults to read because it depicted topics such as friendship, courage, kindness, and so on.