Brand new edition of this fascinating guide to one of the most vital human faculties: the memory. It tells you how your memory works and how to make it work for you. We all have inside our head a system of classifying, storing and retrieving information that exceeds the capacity of the best computer in flexibility and speed. Yet the same system is so limited and unreliable that it cannot remember a nine-figure number long enough to dial it. So how does memory work? How can it be so efficient, yet sometimes so inadequate? Alan Baddeley, one of the world's leading authorities, answers all these questions and more. He unveils the mechanisms of memory while offering practical exercises and useful advice on improving its quality and capacity.