Preface. Project and Design Literacy as Cornerstones of Smart Education

We are proud to present the proceedings of the Fourth International Conference on Smart Learning Ecosystems and Regional Developments (SLERD 2019). Following a successful first edition in the East of Europe--Timisoara, Romania (2016)--a second edition in the West--Aveiro, Portugal (2017)--and a third edition in the North--Aalborg, Denmark (2018)--the fourth edition was in the South --Rome, Italy (2019)--covering all four cardinal points of the old continent. This fourth edition was co-organized by ASLERD, in collaboration with the Institute of Educational Technology of the National Research Council of Italy, Quasar Design University, ISIA Rome, and the University of Rome Tor Vergata's SPFS Department with the endorsement of the Ph.D. program in cultural heritage, learning and territory, in May 22-24, 2019.