Why does the author think Banksy shredded his art?

The goal of "Banksy and the Tradition of Destroying Art," as written by the author, is to show readers how Banksy's activities are comparable to those of other artists throughout history.

Banksy included a shredder into an artwork that sold for more than 1 million at Southey's in London.

Banksy was a British street artist and film director who lived in London. Banksy included a shredder into an artwork that sold for more than 1 million at Sotheby's in London. The auctioneer begins taking bids for the painting with a starting price of 100,000 and finishes with a bid of 860,000. This money, plus the buyer's premium, totaled 1 million.

To know more about Banksy, refer to the link:

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Banksy built a shredder into a painting that was sold in an auction at Sotheby's in London for more than £1m

Explanation:

Banksy was an England-based street artist and film director. Banksy built a shredder into a painting that was sold in an auction at Sotheby's in London for more than £1m.  For the painting, the auctioneer begins taking bids for the artwork, rising from £100,000 and ending on £860,000. This amount together with the buyer’s premium was equal to £1m.

u have too read the letter and do a summery i think

Explanation: