Adult buyers, editors, reviewers, teachers or librarians can not know with any degree of certainty what books a child or young adult will enjoy.
Some books require experiences with reading or with the world in order to be understood and enjoyed.
Books rejected one year may be enthusiastically received another year after the child has gained experiences and matured. Just like some music and some movies, some books or stories or poems must be heard several times and perhaps discussed with others before they can be understood and enjoyed. Each book should be evaluated by itself following general guides or suggested standards, which must be considered in collaboration with knowledge of the child or young adult for whom the book is intended. Knowledge of the child is gained through learning the children s interests and ability levels and through carefully observing the child s reaction to books. Children and young adults need to be exposed to a range of books that will widen their experience with the world, giving them broader social insights and deeper understandings of human conditions and human feeling.