'What the Forest Tells' is a book that invites participation. Young readers, as well as adults, are encouraged to collect forest fruits: pine and fir cones, acorns, beechnuts, and rose hips, chestnuts and nuts, as well as tree fungi, moss cushions, leaves, and beautiful stones. All the little guests from the forest then share their stories. They reveal many secrets from their world and show that nature is full of wonders and fairy tales. This book is not only an enrichment for forest walks or story times on lovely summer evenings. It also entices readers to search for and collect items in the forest, playfully serving as a forest educational trail. The Christmas appendix is intended for those who wish to read the stories as an Advent calendar, similar to the book "Shooting Stars from St. Nicholas," starting on December 6th with a total of 19 stories.