To celebrate and promote the publishing of the Symbol Sourcebook in 1972, an exhibition of symbols was staged in New York City.

As with any published book, Henry Dreyfuss confronts errors in his symbols masterpiece.

Henry Dreyfuss and Leo Burnett—major influences in 20th-century design—assessed the creative, practical, and financial implications of the project.

In soliciting information about symbols from people and organizations around the globe, Henry Dreyfuss sent out two articles that expressed his vision for symbols' potential to transcend written or spoken language.

While researching for the Symbol Sourcebook, Henry Dreyfuss was reminded of an important set of symbols from earlier in the 20th century.

Henry Dreyfuss worked to get the Symbol Sourcebook promoted on the pages of the magazine to an unexpected result.

Sue Perks analyzes the various symbols that have stood for "poison" or "danger" and proves that in communication design context is everything.

As part of a broad promotional push for the Symbol Sourcebook, Henry Dreyfuss worked with Neiman Marcus to produce a bold selection of merchandise related to symbols.

Paul Clifton, project manager of the Symbol Sourcebook, compiled a chronology documenting key moments in the development of the project.