The shadow of war stretches over the northlands. The elven wood burns as Zarrum invaders encroach from the north. Ogres, orcs, and goblin hoards wreak havoc and take strongholds, leaving slaughtered people and burned out villages in their wake. Jayde, a young elvish battlemage, burns as well . . . with vengeance. Her village destroyed, her mother murdered, she takes up her sword and bow, cloaking herself in spellcraft, to becoming the Butterfly Assassin, a thorn in the side of the Zarrum invaders. Still, hiding and killing is lonely work until she meets a human paladin from the south. A man of faith that calls her deeds to task. Mathus, Paladin of Thon the Thunderer, doesn’t know quite what to make of the elf girl he’s fallen in with. Swift with her blade and spells, Fiona doesn’t fit into any of the carefully crafted boxes he’s created for women or elves. Could she be the object of his god-given quest? The Butterfly Illusion is the second book in the Heroes of Harth series, an epic adventure across a sprawling fantasy world.

Visual illusions are compelling phenomena that draw attention to the brain's capacity to construct our perceptual world. The Compendium is a collection of over 100 chapters on visual illusions, written by the illusion creators or by vision scientists who have investigated mechanisms underlying the phenomena. --

A stereogram is a two-dimensional image that, when viewed properly, creates a stunning, almost magical impression of depth. Objects seem to float or to pop out of patterns. And these complex and sophisticated designs, produced by two of the most famous stereogram creators in the world, are state of the art.

The idea of a disjunctive theory of visual experiences first found expression in J.M. Hinton's pioneering 1973 book Experiences. In the first monograph in this exciting area since then, William Fish develops a comprehensive disjunctive theory, incorporating detailed accounts of the three core kinds of visual experience--perception, hallucination, and illusion--and an explanation of how perception and hallucination could be indiscriminable from one another without having anything in common. In the veridical case, Fish contends that the perception of a particular state of affairs involves the subject's being acquainted with that state of affairs, and that it is the subject's standing in this acquaintance relation that makes the experience possess a phenomenal character. Fish argues that when we hallucinate, we are having an experience that, while lacking phenomenal character, is mistakenly supposed by the subject to possess it. Fish then shows how this approach to visual experience is compatible with empirical research into the workings of the brain and concludes by extending this treatment to cover the many different types of illusion that we can be subject to.

Superpowers of Nature is a fascinating, quirky photographic book featuring the amazing superpowers in the animal kingdom. With incredible photos and fascinating text, this book is a celebration of biodiversity and nature. From the platypus to the peregrine falcon, find out all about these amazing animals and the extraordinary abilities that make them the superheroes of our planet. For example: An octopus's brain is distributed all over its body The tropical frog causes potential predators to wretch violently The plumed basilisk can run for its life on water! For each animal discover their superpower, super stats and super facts about them, as well as information about how they used their super skills in the wild. With an important message about protecting the rich biodiversity of our planet, Superpowers of Nature is a stunning photographic book for kids fascinated by the animal kingdom and the weird wonders it has to offer. This book is from the Animal Powers series, which celebrates the weird, extraordinary, and truly amazing powers of some of nature's most incredible animals, while celebrating biodiversity and encouraging young readers to value the natural world around them. Also available is Superheroes of Nature, which showcases the true heroes of the animal kingdom.

Quite soon, the world’s information infrastructure is going to reach a level of scale and complexity that will force scientists and engineers to approach it in an entirely new way. The familiar notions of command and control are being thwarted by realities of a faster, denser world of communication where choice, variety, and indeterminism rule. The myth of the machine that does exactly what we tell it has come to an end. What makes us think we can rely on all this technology? What keeps it together today, and how might it work tomorrow? Will we know how to build the next generation—or will we be lulled into a stupor of dependence brought about by its conveniences? In this book, Mark Burgess focuses on the impact of computers and information on our modern infrastructure by taking you from the roots of science to the principles behind system operation and design. To shape the future of technology, we need to understand how it works—or else what we don’t understand will end up shaping us. This book explores this subject in three parts: Part I, Stability: describes the fundamentals of predictability, and why we have to give up the idea of control in its classical meaning Part II, Certainty: describes the science of what we can know, when we don’t control everything, and how we make the best of life with only imperfect information Part III, Promises: explains how the concepts of stability and certainty may be combined to approach information infrastructure as a new kind of virtual material, restoring a continuity to human-computer systems so that society can rely on them.