Get the classic v shape
A well-developed back will enhance the appearance of your whole physique, even from the front. The key to building an impressive back is to develop both muscle width and thickness, which will give your whole torso more of a '3D, V-shaped look'.
Effective back training requires excellent technique and good nutrition to fuel your workouts and promote muscle growth. The back is a very large group of muscles, consisting of three major muscles and numerous smaller muscle groups. To get the best development, you'll need to use a variety of exercises. Although your back consists of many muscles, you can effectively train your whole back by focusing on the 3 main back muscles, this will also work the smaller back muscles. Here's a summary of the major ones and the exercises that work them.