TAN TAN BOOKS

How to categorise a book that does not fit into a category? There is no slot into which any of these three books will fit.  Counterpart sits uneasily between memoir and fiction. So  what do  we call that? MemFic? FicMem? One Million Euro and Tombola!  triangulate a position between adventure, humour and polemic. This is a problem when it comes to selecting a category for the Nielsen book catalogue service. Perhaps there should be a final catch all category marked simply:  STORIES/life/odd...