If you're looking for a good value, low-carb cookbook then I could recommend this one. It is a genuinely good cookery book, the author is a food editor and it shows - it contains recipes you would choose to use even if you were not on a low-carb program!
I found it helpful to read her own story (she is a food editor and on low-carb for life thanks to a blood-sugar problem), the tips interspersed between the recipes were terrific and easy to absorb. The real-life advice showed up and glowed out -- unlike some of the other low-carb writers who you suspect have just jumped on a bandwagon. Fran obviously knows our weak points, the tips such as what to eat if you are craving a certain type of food i.e. crunchy, salty, sweet or mashed potato were a diet-saver for me and she gives dinner party and special occasion recipes that friends would never know were low-carb.
The only slight draw-back is that it is an American book - but she doesn't use many uniquely US ingredients without suggesting alternatives. A good buy that will get USED in my opinion.