As well as a permanent display of modern Malaysian art, the gallery also puts on regular special exhibitions.
The gallery is open 09:00-17:00 every day, and admission is free.
The only real negative about the National Art Gallery is that it's so difficult to get to by public transport. A walk from the nearest LRT (Titiwangsa) station involves dangerous highway crossings. The best option is to take a taxi: better still combine it with a visit to Titiwangsa Lake Gardens.