Graffiti has long blighted many parts of Edinburgh and washing it off is only a temporary solution.
But someone with a critic's eye has come up with a novel way of tackling the problem in Leith.
At least one "student feedback" letter has appeared on top of a newly-scrawled graffiti tag on a communal bin.
Written in the style of a lecturer marking coursework, the anonymous critic offers some harsh words for the would-be artist who sprayed an indecipherable pink mark on the bin lid.
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Alix Macdonald spotted the review on Saturday morning and shared photos on Facebook. She told us the identity of the reviewer was a mystery.
The letter implies the art critic has observed this graffiti artist's previous work.
Giving a grade of C-, it says: "Some improvement from last effort, however, C- is a pass for this course.
"In order to improve your grade please practice your work before committing to a final piece as discussed.
"Content is lacking in originality and execution, pelase use your development sketchbook to practice your hand-eye coordination.
"Research into other contemporary artists of this genre would lead to a more nuanced understanding of the tagging scene.
"Overall pass, room for improvement."
If you have spotted another graffiti review from this anonymous critic, please get in touch and send us a picture.
