This Bulletin is written for landowners and foresters who wish to convert all or part of a wood or forest from pure, regular, uniform, even-aged stands to mixed, irregular, uneven-aged stands – in particular for those who desire to use silvicultural systems alternative to that of extensive clearcutting, with a view to achieving diverse structure leading to biological diversity and semi-permanent or continuous forest cover. The information provided can be adopted to suit individual owners’ or foresters’ own constraints and objectives. Other aims are to draw attention to what has been achieved in Britain, and the opportunities for further attempts, and to highlight the need for further research, trials and demonstration areas.