A collection of hundreds of thought-provoking optical illusions.

In The Mighty Big Book of Knock-Knock Jokes, you'll find over 700 silly knock-knock jokes, "door jams," and related puns, completely illustrated with some of the wackiest line drawings ever. This new joke book is guaranteed to have budding comedians laughing (and knocking) for hours!

Where's the fun? It's in this book! Kids will love searching through 100 puzzles as they seek out pictures in hidden places such as: A dragon's lair A teacher's messy classroom A Mayan kingdom A Fourth of July parade A pumpkin patch And many, many more! Picking out pictures from a busy background helps kids identify shapes and objects while providing endless entertainment. In this brand-new book, seasoned puzzlemaker Beth L. Blair sends kids on a picture-finding adventure they'll never forget!

It's out of sight! For all you supersleuths out there, it's time to sharpen your searching skills and gear up for some serious fun! The Everything Kids' Hidden Pictures Book has tons of puzzles that take you from the beach to the classroom and all over town in search of out-of-the-way objects hidden from plain view. Grab a pencil and start exploring these creatively mastered puzzles! Whether you're sorting through laundry or posing for pictures, you can plow your way through themes such as: Fun with pets Schooltime activities Friends and family Outdoor entertainment With hundreds of objects just waiting to be discovered, you're in for page after page and hour after hour of fun!

An activity book that acts as a companion to the TV series Brain games.

Visual illusions is a fascinating collection of optical illusions, many of which have never before been published in this form. From classic illustrations of impossible figures to drawings of everyday objects which turn out to be extraordinary to scintillating graphic patterns which pulsate and change before your very eyes, the variety of different effects is almost endless!

Grab a pencil and get ready to become a problem-solving superstar with activities, puzzles, and games that will give your brain a serious boost. Master mystifying mazes, crack coded messages, and uncover the secrets behind optical illusions, all while learning about your own amazing mind.

Wilf worries quite a lot. About quite a lot of things. Well, if we're being totally honest, he worries about almost everything. Stuffed animals for instance. And peanut butter makes him nervous, too. And, as for those awful insects that have waggly feeler thingies instead of eyes? Well, they're something he can't even bear to think about. So, when the most evil man in the world (named Alan) moves in next door one day, Wilf is understandably rather alarmed. Especially after he learns that Alan is a self-styled Evil Lunatic, with his own grumpy robot sidekick to complete the package. Wilf's only ally in his desperate struggle to put a stop to Alan's plan to destroy the world is his sticky little sister, Dot. Can Wilf stop worrying for long enough to save the world?

Friedrich Kittler’s lecture series provides a concise history of optical media from Renaissance linear perspective to late twentieth-century computer graphics. He begins by looking at European painting since the Renaissance in order to discern the principles according to which modern optical perception was organised. Kittler also discusses the development of various mechanical devices, like the camera obscura and the laterna magica, which were closely connected to the printing press and which played a pivotal role in the media war between the Reformation and the Counterreformation. After examining this history, Kittler then addresses the ways in which images were first stored and made to move through the development of photography and film. Kittler discusses the competitive relationship between photography and painting as well as between film and theater, as innovations like the Baroque proscenium or “picture-frame” stage evolved from elements that would later constitute cinema. The central question, however, is the impact of film on the ancient monopoly of writing, as it not only provoked new forms of competition for novelists but also fundamentally altered the status of books. In the final section, Kittler examines the development of electrical telecommunications and electronic image processing from television to computer simulations. In short, these lectures provide a comprehensive introduction to the history of image production, which is indispensable for anyone wishing to understand the prevailing audiovisual conditions of contemporary culture.