As broad a statement as that is i'll clarify more:
I train lats once a week which is included in my upper back workout. My workout is as follow:
2 sets of outer, neutral and inner grip pull downs. So 2x6 per grip ( a little hefty to do pull ups )
Then 3x5 of pendlay rows alternating between wide and close grip
3x5 of barbell rows (normal, barbell just doesn't touch the floor like Pendlay and I'm at a higher angle)
3x6 on each arm of single arm barbell rows
2x8 on each arm for single arm dumbbell rows ( more of a kroc row style without the excessive reps)
Im shooting more for strength however i feel my lats aren't really expanding like i'd hoped and im never sore. I feel i do enough reps for hypertrophy and i think i incorporate mind muscle to the best of my ability when i can focus yet my back seems to be improving the slowest... Any suggestions?