When Alice tumbles down, down, down a rabbit-hole one hot summer's afternoon in pursuit of a White Rabbit she finds herself in Wonderland. And there begin the fantastical adventures that will see her experiencing extraordinary changes in size, swimming in a pool of her own tears and attending the very maddest of tea parties. For Wonderland is no ordinary place and the characters that populate it are quite unlike anybody young Alice has ever met before. In this imaginary land she encounters the savagely violent Queen, the Lachrymose Mock Turtle, the laconic Cheshire Cat and the hookah-smoking Caterpillar, each as surprising and outlandish as the next. Alice's adventures have made her the stuff of legend, the child heroine par excellence , and ensured that Carroll's book is the best loved and most widely read in children's literature. Charles Lutwidge Dodgson, known by his pen name, Lewis Carroll, was a man of diverse interests - in mathematics, logic, photgraphy, art, theater, religion, medicine, and science. He was happiest in the company of children for whom he created puzzles, clever games, and charming letters. As all Carroll admirers know, his book Alice's Adventures in Wonderland (1865), became an immediate success and has since been translated into more than eighty languages. The equally popular sequel Through the Looking-Glass and What Alice Found There , was published in 1872. The Alice books are but one example of his wide ranging authorship. The Hunting of the Snark , a classic nonsense epic (1876) and Euclid and His Modern Rivals , a rare example of humorous work concerning mathematics, still entice and intrigue today's students. Sylvie and Bruno , published toward the end of his life contains startling ideas including an 1889 description of weightlessness. The humor, sparkling wit and genius of this Victorian Englishman have lasted for more than a century. His books are among the most quoted works in the English language, and his influence (with that of his illustrator, Sir John Tenniel) can be seen everywhere, from the world of advertising to that of atomic physics.