Wood drying (also seasoning lumber or wood seasoning) refers to reducing the moisture content of wood prior to its use.
Wood is either air-dried or kiln-dried. Usually the wood is sawn prior to the drying process, but not always (i.e. drying the whole log). For some purposes wood is not dried at all (it is used “green”).
However if it is to be used indoors then it should be dried. Typically when burning wood it is best to dry it.
Air-drying can be effective but is a slow process. A variety of wood drying kiln technologies exist today: conventional, dehumidification, solar, vacuum and radio frequency.