I guess I could have posted in either food or books, or even chat for this.
Curious as to how many cookbooks you have, and do you actually use them?
Do you buy them for yourself, or get them as gifts?
I have a small stack of about 6 cookbooks, mostly Canadian. I use little post-it sticky tabs to mark pages for favourite recipes, or put stars in the index.
Most are general recipe books published by magazines, and one was privately published by the Lutheran church (DH's aunt has a recipe in the book).
One is a specialty for cakes, one is for soups, the others are general.
I find myself using pinterest more often now, but still go back to the books on occasion.