Sonja A.J. Neef: Kalligramme. Zur Medialität einer Schrift. Anhand von Paul van Ostaijens "De feesten van angst en pijn". Amsterdam: ASCA Press 2000 [1]
Deme, Zoltan: Poem-miniatures. In: Chords of Scales, Globe Publish House 1995. Library of Congress No: 2003278749 [2]
Post-War Japanese Poetry (with lots of Japanese calligrams), Penguin Books, 1972.