This is probably the most-used book in our house - I agree that it is fantastic. In the same vein I also recently picked up an old copy of Richard Olney's The French Menu Cookbook - it is wonderful, kind of old-fashioned in places, but a worthwhile addition to any cookbook library.
love simply french. one of the books i've learned the most from. But if you like French Menu Cookbook, be sure to find a copy of his Simple French Food. Seriously, if I had to name a single favorite cookbook of all time, that would be it. great recipes, but also a philosophy of cooking.