Knit One, Bomb Two: A Primer on Yarn Bombing

“Yarn bombing.” The term sounds like an oxymoron, but comes out of the street-wise school of graffiti. Geographer Joanna Mann defines this form of street art: “Also known as ‘yarn storming,’ ‘knit graffiti,’ and ‘guerrilla knitting,’ yarn bombing involves stealthily attaching handmade fibre items to street fixtures or parts of the urban landscape.”

Criminologist Andrew Millie reminds us that like other forms of graffiti and street art, yarn bombing is, well, usually illegal:

Yarn...