How to Use the Grid Method for Drawing
Some of the people reading this page may have heard of the grid method and others may not have. A quick explanation of the grid method is that it is simply a strategy to help keep your drawing in proportion.
You can take a photo reference and set a grid over it and the grid will allow you to break a complex image down into small, more manageable bits. You will also have a grid over your drawing paper and then your job is to simply observe what exactly is in each box on your photo reference and transfer that to the equivalent box on your drawing paper.
It may appear a little bit complicated but in fact the grid method is quite simple. Having a grid of horizontal and vertical lines allows you to easily verify that you are drawing everything in the correct place. On your photo reference, a line might go from one point of your grid to another, and you would simply reproduce that on your drawing paper.
In addition to obtaining some points where lines in your drawing cross grid lines and simply connecting the dots, the grid method can also help you notice various shapes in your photo reference and transfer those shapes to your drawing. The grid method also helps you observe negative space, which is the space that you are not drawing. There are shapes created between your grid lines and spaces you are not drawing that will help you start to see the lines and shapes that you are drawing.
I hope that this explanation of how to use the grid method is not too complicated, but it's kind of difficult to explain without some visual aids. Perhaps I'll come back soon and post some photos or even a video so that I can give you a more thorough and easier to understand explanation.