I really like these interactive, playful posters designed by Chrissie Macdonald for the Central Saint Martins College of Art and Design for their 2008-9 short courses prospectus and poster imagery (found in 'Tangible: High touch visuals by gestalten publications').
A really creative and energetic photographic set-up sets the scene and presents the mood of the college and it's educational outlook brilliantly- as a lively, fun, and sensationally creative place to be. This would undoubtedly be really engaging to their target audience, young creatives, fuelled by their imaginations and visionary aspirations.
This would work very effectively as a large scale (A1+) poster- with clear and bold logo and typographical information at the top of the poster for recognition (just above eye-level), and the bright engaging image below to absorb you, and communicate effectively in the first place.
A fun, creative design for what aims (if not infact is!) a fun, and creative institute of design.