Ross O'Carroll Kelly books written by Paul Howard are brilliantly funny for Irish people if you are into that type of dark sometimes sexualised humour. Some of the humour depends on the news or context of things going on in Ireland in the years previous to the book being read so I don't know if you would get the same kick out of without that background but to me they are brilliant books. The book in the photo was released in 2006
The full list of books can be found below: https://en.wikipedia.org/wiki/Ross_O%27Carroll-Kelly