"Summer seminars" refers to educational or informative sessions held during the summer months designed to provide specific knowledge or training on a particular topic. Full definition
Many teachers are taking more summer seminars right now. (hechingerreport.org)
In 1953, as a representative from Italy, he traveled for the first time to the United States to participate in the International Summer Seminar at Harvard University, Cambridge, MA. (wikiart.org)
He taught previously in the Program in Critical and Visual Studies at Pratt Institute and served also as co-director of Pratt's International Summer Seminar in Architecture and Urban Design. (makcenter.org)