We're somewhat mixed -- there are certain recipes that have been made from Fanny Farmer since the beginning of recorded history, and always shall be. But Joy is the principal cookbook of the house, enough so that we just picked up our fourth edition. (On the theory that the 1948 edition surely has interesting stuff that's been dropped from later volumes.)

Truth to tell, of course, CI has become my go-to source for most recipes. But for the basics, it's usually still Joy...