I think the Rubank's books are for people who already KNOW how to play -- in that, although I can use them --- I choose NOT to. I find Rubanks progresses too vast, or is discombobulated without a definite plan of building on the previous lessons. there seems to be no systematic plan to Rubanks, and I find (if I were a beginner -- like on the trombone) that the Rubank's series is quite inferior for self taught music lessons --- and I might add, I think they would be impractical for nearly ALL BEGINNERS on any instrument ----- like has been stated above. Go get Arban's or Clarke's, learn you scales, play and be happy!!!