Abstracts Books 9th WORLD CONFERENCE on DESIGN and ARTS(WCDA 2020) 8th WORLD CONFERENCE on DESIGN and ARTS(WCDA 2019) 7th WORLD CONFERENCE on DESIGN and ARTS(WCDA 2018) 6th WORLD CONFERENCE on DESIGN and ARTS(WCDA 2017) 5th WORLD CONFERENCE on DESIGN and ARTS(WCDA 2016)