Autobiographical memory is a personal memory of events and places personally experienced. The medial temporal lobe appears to be an important area for these memories, and these sorts of memories appear to be multimodal (sight, sound, smell, touch, emotions) and often lifelong.
In our experience, autobiographical memory is often poorly tapped as a resource or as a conscious part of learning. Maybe it's because the sort of memory that teachers, doctors, or neuropsychologists assess is often of a different sort (impersonal, semantic, etc.).
In some people though, autobiographical memory may appear so strong, that it is a dominating style of their learning. In order to remember, they may have to experience or wrestle with the information personally. Sometimes when we assess a child who has had significant neurological difficulty that impairs both auditory and visual memory, we have used autobiographical memory techniques to see whether it helps them retain the information better. Often it works like a charm - this may meaning weaving the information to be learned into a story that is dramatized (sensory-motor memory too) so that they experience it and then recognize it later. The pictures below show one strategy for studying autobiographical memory. Subjects travel in a taxicab in a virtual reality environment while in a scanner, and then time in taxicab is correlated with brain activity - the area that lights up is the medial temporal lobe. Autobiographical memory is also being tapped in the 'spatial technique' used by Superior Memory champions (originally devised by an ancient Greek) whereby list information is projected on a familiar (autobiographical) scene.
Autobiographical Memory Review
Neurolearning Blog: Superior Memory (scroll down page)