Identifying marbles accurately from books without supporting experience usually results in substantial mis-identification. The reason for this is that novices see a dizzying array of marbles in the book that look alike, look similar, aren't pictured etc etc etc and ultimately make a "best guess" based upon colors. A marble photo in a book show less than 25% of the marble's features. And there are far too many marble types for even a couple of books to represent. So while a book may seem to be a fairly quick and easy ID method - they really aren't.
There are nuances of pattern, cut lines, transparency, color and many other aspects that take experience to use to reach an accurate conclusion. Even among seasoned collectors - identification of some types poses challenges due to similarities between manufacturer's machines and glass formulas.
Nothing is a substitute for identifying a marble with it in hand. That is why learning at shows in the presence of experienced collectors cannot be equalled by books or photos on the internet.
I encourage to find a show near where you live and to plan to attend. There is a wealth of experience and the opportunity to accurately ID what you have.