CLEAN : Philadelphia the city of murals

The video discusses the evolution of a city's arts and cultural scene over the past 15-20 years, emphasizing the importance of providing artists with opportunities to showcase and be hired for their work. It highlights the city's contribution to the creative economy by hiring over 200 artists annually. The video also covers certification programs in scaffolding and carpentry, a large art restoration program, and the use of posterization techniques in art. Building trust within the artistic community is also addressed.

What kind of certification do the artists get related to scaffolding?

What tool is mentioned for breaking down the image?