Oz Martin SharpOz magazine was one of the most visually exciting magazines of its time. The chief organ of the British underground press, Oz was anti-establishment, filled with anger, radical ideas and leftwing politics. Although certain issues were designed by Hapshash and the Coloured Coat, the majority were the work of the Australian artist Martin Sharp, whose posters of Bob Dylan, Donovan and others are considered classics of the genre. Sharp experimented with LSD and his stunning Oz covers were a testament to his new-found influences. Perhaps the most famous of all was this, Sharp's Dylan cover for issue 7 in October 1967

Photograph: The Phaidon Archive of Graphic Design