Signs and symbols - Design.

Signage design manual by: Smitshuijzen, Edo (Language materials, printed)

Global graphics : symbols; designing with symbols for an international market by: Miller, Anistati; Brown, Jared M.; Cullen, Cheryl Dangel (Language materials, printed)

Pictograms, icons & signs : a guide to information graphics by: Abdullah, Rayan; Hubner, Roger (Language materials, printed)