Unger, G. (2018) Theory of type design. Nai 010, Rotterdam, pp240. ISBN 9789462084407

Unger, G. (2015) Letters from the edge of Europe. In: Granshan Conference, 23–25 July 2015, University of Reading.

Unger, G., Grace, T. and Vlachou, I. (2013) Alverata: Latin, Greek and Cyrillic typeface. TypeTogether s.r.o., Prague.

Unger, G. (2013) Romanesque capitals in inscriptions. In: Kindel, E. ORCID: https://orcid.org/0000-0001-9995-5891 and Luna, P. ORCID: https://orcid.org/0000-0003-1556-1217 (eds.) Typography Papers 9. Hyphen Press, London, pp. 5-25. ISBN 9780907259480