The annual joined summer school took place between the 9th and 13th of July 2018 and was hosted by the Central Eastern University in the centre of Budapest. CEU provided the perfect ambience for stimulating lectures and discussions for 23 PhD candidates and the lecturers. Our special thanks goes to Prof. Pawel Swianiewicz (Warsaw) and Prof. Filipe Teles (Aveiro) and the staff of CEU who organised the Summer Schools in a very thorough way. EURA would also like to thank all the speakers and participants. The summer school has been a great joy and pleasure to all of us. We remain grateful for the hospitality of CEU.