Leeds was interested in other archaeological periods and wrote many papers on Neolithic and Bronze Age subjects, the Iron Age and medieval periods, and later archaeology. His medieval and early modern work included studies on Oxford where Leeds researched taverns in the sixteenth to eighteenth centuries and established a system for dating early English glass wine bottles.
Leeds was also very interested in numismatics and was able to put his proficiency with Chinese and many European languages to good use in cataloguing and arranging coin collections.
Leeds was the author of four major works:
- The Archaeology of the Anglo-Saxon Settlements (1913),
- Celtic Ornament in the British Isles down to AD 700 (1933),
- Early Anglo-Saxon Art and Archaeology [Rhind Lectures] (1936),
- A Corpus of Early Anglo-Saxon Great Square-headed Brooches (1949).
He also published numerous other archaeological and scientific papers, notes and reviews.
Bibliography of the works of E.T. Leeds