Tabby weave is the simplest weave binding system. It is based on two or more warp threads (ends) and two or more weft threads (picks). Each weft thread crosses over and under the warp threads. Then the next weft thread goes under and over the warp threads. The third weft thread repeats the action of the first, going over and under, and so forth.
Tapestry is a heavy, handwoven cloth with designs made by separate weft threads that interweave only with the warp when required for the pattern. The binding is usually tabby and weft-faced, and the weft threads are usually of different colours. As most tapestries are woven on looms without a beater, the wefts do not have to lie strictly at right angles to the warp threads. Instead they may follow the contours of the design much more freely.
A twill is a basic weave based on a unit of three or more individual warp threads (picks) and three or more individual weft threads (ends). In this type of weave, each end passes over two or more adjacent picks and under the next one or more. The binding points move one end on successive picks and form characteristic diagonal lines. There are many forms of twill weave.