Once we've learned it as children, few of us think much of the alphabet and its familiar sing-song order. And yet the order of the alphabet continues to play a major role in our adult lives. From school registers to electoral rolls, from dictionaries and encyclopaedias to library shelves, our lives have been ordered from A to Z. Long before Google searches, this magical system of organization gave us the ability to sort through centuries of thought, knowledge and literature, allowing us to sift, file, and find the information we have, and to locate the information we need.