My folks sent me a couple books by Jim Belof, and in the front of each book is a list of uke chords. I refered to them alot while learning the songs because my uke was tune to D, where as all the songs written now days are written in C. So depending on the chord progressions, I may use the fingerings given over each song, or I may have to transpose the fingerings to my tuning, which meant refering to the chord chart. Very confusing, but I did learn alot of alternative fingerings!! By the way, I learned to play from old song books from the 20s and 30s, and all the songs were for D tuning, hence my preference for those chord shapes...