Mostafa Assadollahi was born in Tehran in 1950. Currently he is a Professor and Director of the Graphic Design Department at the Faculty of Fine Arts at Tehran University.

Assadollahi, who is himself a graduate of this university, began his professional activities in the field of graphic design in 1965 as a freelancer for several newspapers and magazines as well as working for graphic design studios. In 1981 he established the Mostafa Assadollahi and Associates Graphic Design Studio, which is still active today.

In 1996 he joined the Iranian Graphic Designer Society (IGDS) and for several years headed the Educational Committee of the Society. In 2003 he was elected the President of the Board of Directors of IGDS. He was always very active in planning and setting up of the Iranian Graphic Design Biennials and participated in the selection committee and jury of these exhibitions. In 2002 he was the General Secretary of the 7th Iranian Graphic Design Biennial. His works have been shown in several exhibitions and he has received awards in the 2nd, 3rd and 4th Biennials for logo and poster designs. He has led and directed national projects related to graphic design and his works have been printed in several domestic and international publications.