Glue (ISBN 0393322157) is a novel by Scots writer Irvine Welsh. Glue tells the stories of four Scottish boys over a few decades, through the use of different perspectives and different voices. Glue addresses sex, drugs, violence, and other social problems in Scotland through the lives of these four boys. The title "Glue" refers not to the abuse of adhesives, but the metaphorical glue holding this foursome together through changing times.