(Image credit: Girl in Café, late 1950s © John Deakin, The John Deakin Archive 2013)

Considered to be one of the greatest postwar British photographers, John Deakin was renowned for his penetrating portraits, haunting street scenes and striking fashion work. Under the Influence: John Deakin and the Lure of Soho at The Photographers' Gallery (until 13 July) explores the hidden corners and colourful characters of 1950s and early 60s London Soho, and includes rarely seen and un-shown works including portraits of the painters Lucian Freud, Frank Auerbach and Francis Bacon.

Under the Influence: John Deakin, Photography and the Lure of Soho by Robin Muir is published by Art/Books in association with the John Deakin Archive and The Photographers’ Gallery, £29.99.

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COMPETITION: Win a copy of Under the Influence: John Deakin, Photography and the Lure of Soho. To enter the competition, send an email to vienna@run-riot.com with the correct answer in the ‘subject’ box. The winner will be randomly selected.

Q: Which well-known British jazz performer called John Deakin, "a vicious little drunk of such inventive malice that it’s surprising he didn’t choke on his own venom"?

A: .1) George Melly .2) Thelonious Monk .3) Jelly Roll Morton .4) Jimmy Mazzy