Each year there is a special week promoting adult learning. In 1998 it was 16-22 May. There may also be relevant events in your area, perhaps at your local college. A variety of subjects should be available in evening and day-time courses in your local area. Courses are usually held in local adult education institutes or colleges of further education.
Courses are usually payable by the term.
There are many opportunities available in further education. You may wish to do an academic type option like GCSEs or 'A' Levels, or you may prefer to follow opportunities offered by City and Guilds or BTEC which are geared more towards training for a particular job. These courses are often called vocational. Options are often available on a full or part-time basis, depending on the choice of course. Funding may not be available to cover the tuition for courses for people over nineteen years old.