This book is controversial due to descriptions of Witchcraft, Satanism, Blessing and Cursing. It is a children's book that tells about curses on families, creatures, places, wanderers and ghosts. It also describes amulets and talismans which provide protection.
The book appears on several lists of "banned" or challenged books in the United States, e.g. [1] and [1].
See also: List of banned books