Btw, the first of those is supposed to be in the "sincere" category, although still significantly undersold. The second is "puzzle" in the dull general-knowledge sense that I'd be surprised if anyone who hasn't read it gets it, and I've probably oversold the book to anyone who likes the rom-com premise of the blurb. The third is a new category, namely a perverse misinterpretation of the initial setup based on ignoring the nature and importance of the "twist".