The 4th international conference on Tuber aestivum syn. uncinatum, was held at the end of September in Budapest, Hungary. The conference includes two full days of lectures from top truffle scientists from around the world, including Dr. Paul Thomas. Paul presented some of our latest research about the importance of the relationship between pH levels and mycorrhiza coverage utilizing far larger data sets than have ever been published. Also on the agenda were meetings to discuss the truffle industry and potential legislation.