Ammar Khammash was listed as one of the 30 most influential people in Jordan in the first annual selection of Jordan's “Power 30” by Jordan Business magazine in 2006.
Khammash is the designer of the paper currency for all five denominations of Jordanian dinars now in circulation in the Hashemite Kingdom of Jordan. His deep knowledge of Jordan across a multitude of disciplines -- ecology, geology, botany, archeology, anthropology, and architecture has positioned him as the foremost reference-individual on topics related to the land of Jordan, often consulted by His Majesty King Abdullah II, the Jordanian government, and international agencies in the fields of development, planning, identity, and design.
As an artist, Khammash's work has been extensively collected by Their Majesties as well as members of the Royal Family. Since the late 1970s, the primary subject of his work was the Jordanian landscape, but for the last few years he has been concentrating on more figurative works. As an architect, one of his buildings, the Feynan Eco lodge, won international recognition as one of the “Top Fifty Eco lodges in the World” by National Geographic Adventure Magazine. The same building was selected by Travel + Leisure for the 2010 Global Vision Awards. Also the architect behind Wild Jordan, which was published in Phaidon's Atlas of 21st Century World Architecture and won the prestigious Guardian-Observer ‘Ethical Travel Award” for 2010, Khammash has joint venture projects with world-renowned architects such as Kerry Hill and Peter Zumthor. In 2009 and 2019, he was invited to co-teach graduate architecture design studios at Columbia University.