The first "4th Block" poster exhibition took place in 1991, when Oleg Veklenko, a professor at the Kharkiv Institute of Industrial Arts (now the Kharkiv State Academy of Design and Arts) and former army officer, worked with his colleagues to organise an exhibition devoted to the fifth anniversary of the Chernobyl explosion.
The competition and exhibition of eco-poster, graphics and youth eco-projects has since occurred every three years. Exhibitions touch upon the most painful ecological problems, such as pollution, global warming, genetic engineering, etc. The 2006 edition brought over 4500 works from 54 different countries.
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![Call for entries: 2009 Adobe Design Achievement Awards [Image: Call for entries: 2009 Adobe Design Achievement Awards]](http://www.icograda.org/database/images/display/sb492d8adfdccf8.jpg)
