The Technical Committee TC102 of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE) and the Organising Committee of CPT’18 extend a warm welcome to all participants of the 4th International Symposium on Cone Penetration Testing (CPT’18). The symposium is being held at Delft University of Technology, in Delft, The Netherlands, 21–22 June 2018,…