In 1992 Williamson launched a literary magazine called Rebel Inc [REF] and through its pages was one of the first publishers of such Scottish writers as Irvine Welsh, Laura Hird, Alan Warner, and Toni Davidson.
In 1996 Williamson joined forces with Edinburgh-based Canongate Books to create the Rebel Inc imprint [REF] which, in the following five years, published almost sixty titles, mixing Scottish fiction with the international counter-culture and the politics of dissent.