Pick the first person in line 8 ways; Pick the second person in line 7 ways; Pick the third person in line 6 ways; Pick the fourth person in line 5 ways; Pick the fifth person in line 4 ways; Pick the sixth person in line 3 ways; Pick the seventh person in line 2 ways; Pick the eighth person in line 1 way. Total = 8×7×6×5×4×3×2×1 = 8! = 40320 ways. Edwin