This manual acquaints readers with the general operations of the tree care industry. The manual covers subjects important to a tree worker and serves as a training aid for workers at the entry level as tree care professionals. Each chapter begins with a set of objectives and may include figures, tables, and photographs. Ten chapters are included: (1) the tree service industry; (2) clothing, equipment, and tools; (3) the tree workers; (4) basic tree anatomy; (5) pruning; (6) climbing and working in the tree; (7) aerial lifts; (8) tree identification; (9) identification and treatment of tree problems; and (10) other tree care operations. The manual contains two appendices: first aid procedures and scientific and common names of selected common plants of North America. A glossary and index are included. (NLA)