The usual concept of pruning is to trim evergreens to maintain their natural lines, to remove dead wood, and to clip for the purpose of increasing the density of the plants. However, the heritage of a different type of training has come to us through the centuries. There are three definite methods other than the ordinary pruning procedure for attaining unusual, and in many instances, charming effects. These methods of training are espalier, bonsai, and topiary work.