Gonca Kolaçan is a graduate of the Faculty of Fine Arts, Department of Architecture and Design. She is a student and art partner of the artist Burhan Ersan in Us by Su Atelier.Since discovering the Reng-i Su technique, she felt in love with this art form and the philosophy of Water. She continues her inner journey of self-discovery that began after her encounter with water.'By Su' means 'by the Water'. She signs all the art she makes with 'By Su'; her pseudonym as an artist. Us by Su is the name of the company.