There is a great TED talk about this: <a href="http:&#x2F;&#x2F;www.ted.com&#x2F;talks&#x2F;joshua_foer_feats_of_memory_anyone_can_do" rel="nofollow">http:&#x2F;&#x2F;www.ted.com&#x2F;talks&#x2F;joshua_foer_feats_of_memory_anyone_...</a>