Going west on 192 from the Disney entrances, pass Formosa Gardens Dr (road, blvd?). Keep going! The library is about 5-10 minutes past that, on the right, in the shopping center with the SECOND publix.
So, from Formosa gardens (where the dragon is) continue west on 192. Go past the first publix. Look for the second publix and the library is in there. The library is on the corner of the strip mall.