The landscapes of Malaysia, close to the natural environment in the mountains and beaches became a main theme in A.J. Rahman's oeuvre. Rendered with light and uplifting colours, the tropical scenery is enlivened by the artist's deft brushwork and skill. His observations of the natural surrounding framed by tall vertical palms / coconut trees and cloud filled skies are distinct hallmarks of his style. A.J. Rahman, together with A.B. Ibrahim and Saidin Yahaya, formed a group named Tiga Serangkai which was the start of the art history in Kedah. In 1946, the trio opened up their art studio called Warna Art Studio located in Pekan Rabu, Alor Setar. Besides being an artist, A.J. Rahman was also a school teacher.