Of the five books I finished over vacation, the one that impressed me the most – and that is probably of broadest interest – is Moonwalking with Einstein: The Art and Science of Remembering Everything, by science writer Joshua Foer. This is an absolutely phenomenal book that looks at memory and techniques for dramatically improving memory. Foer actually mastered these techniques, which led him to the finals of the U.S. Memory Championship. His book gives fascinating insights into how the mind works. (I have more to say in my separate review of Moonwalking with Einstein.)