I'm not finished it yet but I want to use this site so I have to say something. It's written in his typical Edinburgh Scots dialect, which feels satisfying to master the further you read. One of the main elements of this book is a tapeworm inside the main character's asshole, which interrupts the prose with weird intestinal shapes that bulge across the page.

The main character is a very bad and intensely unlikeable person. I don't really care for the type of books where "you're supposed to hate the main character," or maybe these types of books just often seem to try too hard to make its commentary work. Whatever the case, this isn't one of those books. Welsh is a very funny writer. This is one of the rare books where I laugh out loud pretty regularly. I can't see it getting published in the literary world today: too fucking crude, too many slurs. A lot of funny dissections of office PC politics that are still relevant and funny. Anyways, worth a read if you're curious about his stuff beyond Trainspotting. (Similarly, The Acid House, one of his short story collections, is also great.)