Paul Shaw, Codex, Issue 2, 2012
Lund Humphries, Typographica, No. 15, 1977
Lund Humphries, Typographica, No. 13, 1966
Lund Humphries, Typographica, No. 13, 1955
Lund Humphries, Typographica, No. 9, 1964
Gavin Ambrose & Paul Harris, The Fundamentals of Typography, 2006
Nancy Aldrich & John Fennell (eds.), Designer's Guide to Typography, 1991
Oti Aicher & Josef Rommen, Typographie, 1988