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.