Common bond brick patterns can look very similar but, upon closer inspection there are subtle differences in the make up on the pattern. The untrained eye might not notice these subtle changes within the structure of the pattern and brick work is not something most people would specifically examine. Therefore, the details of the brick work would go unnoticed.
Running bond pattern is the most common type of pattern for brick work. Ordinarily used in cavity wall construction, this is made up of a course of stretcher bricks with ties. The stretcher tiles are laid across the center of the previous course, so that every other course is a join in the middle of course above and below it.
Common bond is a very similar structure to running bond, but common bond has a layer of stretch bricks with shorter stub bricks above and below it. What you will see is for every 3 stretcher bricks, the course above and below will be 6 smaller bricks. These walls are very sturdy and durable. This is better known as English Bond.
Course Header Common Bond
This is more like running bond, with a mix of English bond. One layer of stretcher bricks, followed by a layer of shorter bricks, then 5 or 6 layers of stretcher bricks followed by 1 layer of shorter bricks. It is more for aesthetic differences than for structure that this pattern is used.