Hazel (Corylus Avellana) a multi stemmed large shrub/small tree, is one of the old British coppice favourites. Growth tends to be vigorous unless left to get too big then they weaken and lose vigour. Regular Coppicing will keep the plant regrowing indefinitely but coppicing overgrown trees can have a rather detrimental effect on health, sometimes fatal. Coppicing - cutting off at ground level is generally for unhybridised natural natives. They are normally tolerant of severe pruning if the plant is healthy enough. Uses included walking sticks, wattle and daub and fence panels. They can sprout heavily from improper pruning and large wounds will decay steadily but no where near as fast as willow/birch. Hybrids tend to be less durable/vigorous. Can be used for hedging of any size and farmers regularly trim them with tractor flails in autumn/winter with no noticeable ill effects on life span or vigour. The nicest results come from target pruning with hand saw and secateurs or starting again from ground level. Twisted corkscrew Hazel - Corylus Avellana Contorta should have any straight stems removed and is not as vigorous or tolerant of heavy pruning as far as I know. As for pruning fruit trees, try Google, there are different pruning techniques for different end results and types.
Hope that helps
Andy