THE DESIGNFUL COMPANY by Marty Neumeier is a compelling study of 21st century concepts of innovation, design management and business ethics. His third book is a manifesto on building a company based upon the pillars of vision, culture, and innovation. However he uses “posters and toasters” as part of a larger metaphor for 20th century design thinking. Most companies generate a steady stream of quotidian design materials—products, print communications, websites, signage, retail environments, packaging, trade show exhibits, advertising manuals, financial reports—the “toasters and posters” of the 20th century. While it’s true successful organizations and businesses in order to succeed must embrace sustainable thinking from the inside out it is also true that poster art remains a timeless medium for purposes of political incitement, biting wit and a proving ground for the power of metaphors. Literate artists and designers know poster luminaries such as John Heartfield, Hannah Hoch, AM Cassandre, Ben Shahn, and in Israel, Yossi Lemel. Posters are not afterthoughts from a century passed—they are the bread of the earth. Aficionados and anyone else with an interest in large-scale graphic expression should study the largest poster archive in digital space: Rene Wanner’s Poster Page.
Martin Mendelsberg's Graphic Issues 
We might also mention that, because of their necessary contrast and typographical movement, posters are the most theatrical form of two-dimensional design. Theater design does not tend to be informed by graphic design but posters break that barrier. It is no coincidence that several designers in deconstructionist theater were also enthusiastic poster artists.
Interesting. Who are some of the “deconstructionist” designers? I would very much like to see their poster work. I should have included Lautrec in my list of luminaries. Thanks, Martin