Our journal submission “The LiverSurgeryTrainer – Training of Computer-Based Planning in Liver Surgery” was accepted at the International Journal of Computer Assisted Radiology and Surgery. The paper with Jeanette Mönch as Principal author documents as a summary our long-term efforts to create a software system for case-based training, including expert opinions, intraoperative videos and resection proposals. Surgeons may assess the operability and resectability and compare their decisions with expert decisions and their explanations. Many thanks for the cooperation to Fraunhofer MEVIS, in particular Christian Hansen and Prof. Karl Oldhafer, our major medical partner. We are also thankful to many other surgeons for providing the necessary feedback.