Richard Wiseman has journeyed into the badlands of self-help books with a train of porters carrying academic research on what actually does work when it comes to fulfilling all those rather grandiose goals(losing weight, finding (or indeed fighting as I first typed) the perfect mate, or becoming hugely rich and impossibly attractive). One effect of this is that he packs a lot more advice into the book because the researchers finish off rather quickly some of the wackier (but sadly ineffective) theories that are often used to pad out self-help manuals.
The book therefore has at least two uses. Firstly, it is amusing to see what does work and why it might work (one needs to be careful in assuming the rationales have the same degree of scientific rigour). Secondly, there is some very good advice in here if you want to deal with various problems. My favourites are smiling in front of the mirror with a pencil between your teeth (increases well-being) and the starting a difficult task so you get sucked into finishing it (defeats procrastination). Something that entertains and informs, I recommend it.