Roser Capdevila i Valls (Barcelona, 23 January 1939) is a Spanish Catalan writer and illustrator, known internationally following the publication of the film adaptation of "Les tres bessones", The Triplets.

In 1983, inspired by her three daughters, Teresa, Anna, and Helena, she created the characters of "Les tres bessones" (The Triplets), whose books have been translated into 35 languages and led to the creation of a television series in 1994 by the production company Cromosoma and in collaboration with Mercè Company, when at that time, there were no girl protagonists in cartoons, which was broadcast in 158 countries.

But, above all, that they leave me a pencil and a notebook next to me, just in case..." –Roser CapdevilaIn 2022, as a special guest, she made her first Les Tres Bessones mural at the 7th edition of the Gargar Festival in Penelles.

In the large-scale drawing, the three sisters can be seen climbing a tree as they watch the characters from the story make their way to the candy house where the witch lives.

All this occurs under the attentive gaze of the "Bored Witch" who observes the scene from behind a tree located on the left margin of the work.