The CERN Accelerator School on High Gradient Wakefield Accelerators was held 11-22 March 2019, in Sesimbra, Portugal, with more than 90 participants and lecturers. The CERN Accelerator Schools are organised by CERN and this time, GoLP was responsible for the local organisation. Our team members delivered several talks, and were responsible for the hands on workshop on plasma simulations. The president of IST delivered one of the keynote special lectures, on Artificial Intelligence.