When in high school, I took home economics as a class. One book required was Betty Crocker Cook Book. Mine is dated 1956. Now you know I am getting up there in years! I still pull my Betty Crocker out from time to time to help me determine substitutions, or use the helpful hints to make a certain chore easier, or which herbs and spices go well with certain foods.. Many years ago, I recovered the loose leaf binder with contact shelf paper. And, like someone else said they did, I used duct tape to hold the bind together. I also have reinforced many of the page holes with self stick reinforcements. It is so tattered, but I would never get rid of it.
I began my marriage with the book, raised my two children on the recipes therein. I still use it as general reference. I have some fav cookie, cake, & souffle recipes that I still make from its pages. Cooking has changed somewhat in that span of time. It seems to me that today, we use many more wide-ranged foods (for instance cuisine from foreign countries, therefore, more herbs and spices and exotic ingredients). Back in 1956, the recipes tended to be mostly mid-west farm style.