The ability of create another copy of a book to have in different bases rather than always carrying them.
Ability to take selective notes: Most of the info or recipes in most books are dead weight, would be nice to just be able to take what you need/ the recipes you don’t know by heart.
Residual memory: Ever tried to craft a recipe that is in a book only to find that you are 1 square to far to be able to craft it? or figure you’ll craft it from materials outside of your base only to realise you have to go back to get the book it is in? Especially if you JUST read the book? annoying.
Proposing that after reading a book (or being near it?)your char will remember the recipe for a set period of time.