What Should you do with a Yoga Book?

So, what did Yoga teachers do? When we acquired a book, we analyzed it by hand, and read a little. We made sure it would suit our needs, before we checked it out of the library, or purchased it from a book store. The reason is simple - If we buy or borrow any kind of a book, the value of our time is magnified by our complete comprehension and the ability to put it to practical use.