Metro and walking directions to Tian He Book Centre

I found the Tee Mall and have some directions but the directions were confusing. What Exit on the metro is the best? My directions say that it is kitty corner to the Tee Mall but there are at least 4 exits from the mall so not sure kitty corner to which corner of the mall. Is the main entrance where Starbucks is? My directions said look for a SHARP sign but I went out 4 exits of the Tee Mall and could not see a SHARP sign (maybe too much foliage this time of the yr). Please tell me which metro exit, which exit from the Tee Mall, which way do you turn to walk, do you go over or under a major street (if so what is the name of this street) and what is the actual address of this book store?