Our brains can preserve information in all but which way?

The human brain uses a process called encoding to preserve information. The brain preserves this information in many ways which include visually, sensory representations, and in an auditory way. The only way that it cannot preserve information is in a graphic way. In order for the brain to remember something later, the original stimulus from the memory is gone so it needs to have some sort of representation of the information it has taken in.