Speaking to Dezeen, the designer revealed that the Invisible Bookend is a freestanding object made of metal, but gave no further clue to how it works.
"The idea is it's not about the object," said Cocksedge. "It's all about the fact there's not anything interesting about the design, it's just a great functional object."
The bookend holds a metre and a half of books at an angle and is available from the designer's online shop priced £50.
Last month Cocksedge produced an aerial installation featuring a mystery telephone number as part of Dezeen's Seven Designers for Seven Dials project in Covent Garden, London. He also contributed a pendant lamp made of polystyrene cups to the Dezeen-curated Stepney Green Design Collection.
Photographs are by Mark Cocksedge.
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