Just incase the title of this post wasn’t a massively obvious clue, last year was the International Year of Chemistry. Graphic designer and illustrator Simon C Page has created these awesome posters (which are for sale here) to “increase the public appreciation of Chemistry in meeting world needs, to encourage interest in Chemistry among young people, and to generate enthusiasm for the creative future of Chemistry.”
Make sure you also have a look at the previous poster series for the International Year of Astronomy 2009.