The Australian designer Yvonne Diedrich created the font in 1998. The typeface is named for the Latin word "dyas", meaning duality and explores the duality of serif and sans serif letterforms, blending their styles and focusing on their connection with one another. The forms were inspired by the typefaces of the 1920s and 30s and combine the legibility and elegance of a serif font with the simplicity of sans serif. ITC Dyadis is part of the Linotype Library. ITC Dyadis is a trademark of International Typeface Corporation.