Source: Najjar, LJ (1998) Principles of educational multimedia user interface design (via Brain Rules by John Medina, 2008) We are able to remember about 10 % of what we have heard. We are able to remember about 35 % of what we have seen. These two combined and we are able to remember a whopping 65 % of what we have seen and heard! Designed by: Video propably the mt effective way of getting your msage through.