Wood turning is a form of woodworking that is used to create wooden objects on a lathe. Wood turning differs from most other forms of woodworking in that the wood is moving while a stationary tool is used to cut and shape it. Many intricate shapes and designs can be made by turning wood.

                          

                                                          

There are two distinct methods of turning wood: Spindle turning and faceplate turning. In spindle turning, the wood is fixed between 2 points. The spur center digs in to the wood and is powered by a motor. The other, a hard center or a live center may be a point or set of points in the tail-stock. In face plate turning, the wood is secured with screws to a faceplate or in a chuck or jig. the tail stock and a center may also be used for added support on large pieces with a faceplate. Most bowls, platters and many vessels are face plate turned, while, Pens, furniture legs, spindles, and some vessels are spindle turned. The method used may differ depending on the shape of the blank and the technique of the turner, and both methods may be used on the same piece.

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When wood is cut in such a way that the fiber being cut is not supported by the fiber below it, it tends to separate and tear. This "tear-out" exhibits a rough, highly damaged looking surface texture and greatly reduces the value of any product exhibiting it. The direction of cut is different in spindle turning and faceplate turning because cutting in the wrong direction can cause tear-out. Spindle turning cuts are made from high points toward the axis on the outside of the piece, and from the axis toward the outside when hollowing. When faceplate turning, the opposite applies.


Here are some simple pots to give you an idea of what can be achieved quite easily.
I haven't had much experience of turning and what I do know is all self taught.