>For most books, the reality is that you only need to know the Big Idea and its main justifications. I'm not sure what genre/sort of books you have in mind; I

>For most books, the reality is that you only need to know the Big Idea and its main justifications. I'm not sure what genre/sort of books you have in mind; I can't offhand think of any books I like that have a Big Idea that alone should be retained. Maybe business books or something? Sure, you can put a book in a nutshell, but everything worth reading about it will be lost.