Urban Sketchers Workshops:
(sponsored by Urban Sketchers International)
Local Workshops sponsored by USk
Urban Sketchers Seattle has a number of "10x10" workshops in 2019. Go here and follow the links to descriptions and more information.
Urban Sketchers founder, Gabi Campanario, offers several local workshops in Bothell and elsewhere during the year: http://www.estudiocampanario.com/workshops-calendar/