Bruce Edwards concepts on curry far surpasses that of KDs' . Both his methods and ideas were far more intuitive and closer to the mark . KD's attempt to re-create BIR curries is more style than substance - however there is the odd recipe which is passable . I think that a lot of the members here have gleaned whatever information they can from these authors and have moved on to create far more authentic tasting dishes - the recipes on this site can attest to that . Like laynebritton says , books are just a guideline . Checkout the recipe database and be prepared for a curry culinary treat .