There are various methods of tree shaping. There are strengths and weaknesses to each method as well commendable tree species for each process. Some of these processes are still experimental, whereas others are still in the research stage. These methods use a variety of horticultural and arboricultural techniques to achieve an intended design. Chairs, tables, living spaces and art may be shaped from growing trees. Some techniques used are unique to a particular practice, whereas other techniques are common to all, though the implementation may be for different reasons. These methods usually start with an idea of the intended outcome. Some practitioners start with detailed drawings or designs. Other artists start with what the tree already has. Each method has various levels of involvement