While alchemy is marginal to current visual art, alchemical thinking remains central. Some lesser known artists such as Brett Whiteley, Krzysztof Gliszczynski, and Thérèse Oulton openly use alchemical symbols. On the other hand, alchemical influences in the work of renowned artists such as Jackson Pollock, Marcel Duchamp and Salvador Dalí may be more superficial, and not the primary importance of the work.