A very effective survey of the history, theories, and current status of our knowledge about memory. More than that, it is an interesting read because the author keeps it moving along from one topic to another in many short chapters that are sprinkled with quotes and anecdotes. Per one of the major findings, I'm sure I've already forgotten much of what I read, as the decay in recall is 80% within a month and begins immediately. The ancients and the current non-technical cultures are much better at remembering becaue they do not use the crutch of written text. Memory has been shown to be strengthened through exercise, either in the form of intentional practice or mentally stimulating activities (the Great Books, crosswords, etc). While our elderly are perceived as becoming forgetful, those that stay active have the same recall as younger people, though they are not as quick. Elders who are venerated by their culture do not experience the same memory decay. The mechanics of how memory works is still a mystery, though there is evidence that the brain can regenerate the neurons and that the process involves the whole brain's network of neurons.