A mire is a synthesis of water and soil. In the pristine state it accumulates plant remains and forms peat. This ecosystem is common especially in cool regions. Forests growing on mires and peatlands constitute an important renewable natural resource. The book discusses peat and mire properties relative to forestry practiced both on pristine mires and drained peatlands in Nordic conditions. Where relevant, the approaches applied in other parts of the boreal and temperate zones are also discussed.