17/04/2012 07:41 BST | Updated 17/04/2012 18:33 BST

How Well Do You Know Irvine Welsh? (QUIZ)

Irvine Welsh's Skagboys is the concluding part (we assume) of his most epic and well-known tale - that of the heroin addicted, psychopathic Edinburgh friends Renton, Sickboy, Spud and Begbie.

Above all else it's truly a novel for Welsh's fans - those who can't get enough of the gang they first met in Trainspotting 20 years ago, for whom the idea of a prequel is, well, jist pure barey Catboy, ken?

To mark its release, we've put together a fiendish quiz that encompasses Welsh's novels, short stories and his own life to separate the part-time fans from the true die hards.

Naturally, it contains some bad language. Good luck...

How well do you know Irvine Welsh?