It might sound corny but I put some students on the big Mel Bey modern method book and it seems to work and you'll learn to read music.
Another great set of books is the Howard Roberts Praxis System, 3 vol. but very difficult to find.
You might find a local guy to give you some lessons. Start with the major scale and how to harmonize it...learn about intervals and basic chords.
all the best
ie
http://kronosonic.com