Liver surgery has advanced remarkably, but major challenges remain. These include developing more efficient minimally invasive surgical techniques, improving patient selection for any given treatment modality, and eliminating the risk of recurrence, particularly in the liver. The use of techniques involving virtual reality and robotic surgery is developing. More accurate methods of determining liver functional reserve and investigating liver regeneration are necessary. The application of gene therapy to the management of liver tumours is in its infancy. Finally, in the area of liver transplantation, a solution to tissue tolerance is close and the possibility of xenografts is on the horizon.