Photos by ‘controversial’ US photographer Larry Clark, recording his teenage life of drugs and addiction in Tulsa (1971) and Teenage Lust (1983). The accompanying essay by Sean Hagan in the Guardian is worth reading.
Tulsa remains a template for all that followed, a blurring of the lines between voyeurism and intimate reportage, between honesty and exploitation
See the whole series:
http://www.theguardian.com/artanddesign/gallery/2014/jun/05/teenage-lust-larry-clarks-most-controversial-photography-in-pictures