Glenn Blough with Joanne Bendick as illustrator have produced many science-nature books for children. Their knack for combining pleasant conversation with sound scientific fact makes learning a pleasurable experience for their audience. The subject of Christmas trees evokes a magic spirit of its own surrounded by all sorts of cheerful memories. Making the most of this special interest, author and illustrator discuss the great variety of trees used at Christmas time, the development of tree nurseries and Christmas tree plantations. This provides a springboard for more generalized botanical information -- the functions of leaves, trunks, roots and bark and the necessity for following conservation rules to the letter. Aside from its function as a holiday adornment, the Christmas tree is beneficial to man in many ways. The scope of the book transcends seasonal limits, though it would make an appropriate gift for that time of year.