http://www.telegraph.co.uk/property/3354107/Growing-figs.html
Excerpt:
"Figs really are a lazy man�s fruit and, once they have had their formative training, mature trees or wall-trained shrubs do not need much attention apart from some replacement pruning. This involves removing one of the seven or so main limbs every three to four years in March or April, to stop the whole bush becoming too old and unproductive. Apart from this, providing you have the wall space, you can leave well alone. I have seen many such 'neglected' plants, and they still fruit well, although perhaps not as well as they might.
"On the other hand, if you want to maximize your crop (assuming it is against a wall), buy a copy of Clive Simms� Nutshell Guide to Growing Figs (Orchard House, �3.50, tel 01780 755615) to see how to fan train it against a wall--it is not hard. Once you have established an approximate fan of branches, you can start the ongoing pruning regime.
"Firstly, remove any weak branches in winter. Then, in April, remove the very tips of the main branches, above the developing figs. This will encourage side shoots, which are summer-pruned by cutting back in June to about four leaves. This technique can almost double the crop and bring it forward by a couple of weeks. Do not be tempted to cut back hard in winter, unless you don�t mind forgoing a lot of your crop--this will cause lots of new growth but little fruit."