Yosr Ben Ammar Gallery first opened in 2005 under the name Kanvas Art Gallery in Gammarth, Tunisia, where she devoted herself to modern and contemporary Tunisian art by exhibiting renowned artists such as Ahmed Hajeri, Abdelaziz Gorgi, Jalel Ben Abdallah, Aly Bellagha, Aly Ben Salem, but also the launch of a new generation of artists such as Mohamed Ben Slama, Nabil Saouabi, Mohamed Ben Soltane, Omar Bey, Oussema Troudi,
Since 2015, the gallery has also devoted itself to Street Art by exhibiting Tunisian and international artists such as eL Seed, De La Mano, Swoon, Pantónio, Brusk, DaBro.
The gallery is known for being avant-garde and committed.
In November 2019, the gallery opens a new space of 180 m2 in Sousse.