A thirteenth-century treatise on the theory and practice of ophthalmology, this unique work provides a window on what passed for medical knowledge of the eye during the late Middle Ages. Although little is known of the author, Benevenutus Grassus, he seems to have roamed Italy in the early thirteenth century as a medical practitioner specializing in diseases of the eye.
This title presents a celebration of vision, of art and of the relationship between the two. Artists see the world in physical terms as we all do. However, they may be more perceptive than most in interpreting the complexity of how and what they see. In this fascinating juxtaposition of science and art history, ophthalmologists Michael Marmor and James G. Ravin examine the role of vision and eye disease in art. They focus on the eye, where the process of vision originates and investigate how aspects of vision have inspired - and confounded - many of the world's most famous artists. Why do Georges Seurat's paintings appear to shimmer? How come the eyes in certain portraits seem to follow you around the room? Are the broad brushstrokes in Monet's Water Lilies due to cataracts? Could van Gogh's magnificent yellows be a result of drugs? How does eye disease affect the artistic process? Or does it at all? "The Artist's Eyes" considers these questions and more. It is a testament to the triumph of artistic talent over human vulnerability and a tribute to the paintings that define eras, the artists who made them and the eyes through which all of us experience art.
Artist and naturalist Tony Angell has used Puget Sound's natural diversity as his palette for nearly 50 years. He describes the methods he uses in his art and his observations and encounters with the species that make up the complex communities of the Sound's rivers, tidal flats, islands, and beaches: the flight of a young peregrine, an otter playfully herding a small red rockfish, the grasp of a curious octopus. Tony Angell is an illustrator, sculptor, and author of RAVENS, CROWS, MAGPIES, AND JAYS and OWLS. He served for thirty years as Washington State Director of Environmental Education.
Presents a discussion of German-born American artist Josef Albers' perspective on color and use of contrasting combinations of colors to revolutionize the way people look at art.
It's THE book on manga from YouTube's most popular art instruction Guru! There's more to manga than big, shiny eyes and funky hair. In these action-packed pages, graphic novelist Mark Crilley shows you step-by-step how to achieve an authentic manga style—from drawing faces and figures to laying out awesome, high-drama spreads. You'll learn how a few basic lines will help you place facial features in their proper locations and simple tricks for getting body proportions right. Plus, you'll find inspiration for infusing your work with expression, attitude and action. This is the book fans have been requesting for years, packed with expert tips on everything from hairstyles and clothing to word bubbles and sound effects, delivered in the same friendly, easy-to-follow style that has made Mark Crilley one of the "25 Most Subscribed to Gurus on YouTube." Take this opportunity to turn the characters and stories in your head into professional-quality art on the page! Packed with everything you need to make your first (or your best-ever) manga stories! • 30 step-by-step demonstrations showing how to draw faces and figures for a variety of ages and body types • Inspirational galleries featuring 101 eyes, 50 ways to draw hands, 40 hairstyles, 12 common expressions, 30 classic poses and more! • Tutorials to create a variety of realistic settings • Advanced lessons on backgrounds, inking, sequencing and layout options
Even before the original Frostgrave rulebook landed in players' hands, its artwork, previewed in the run-up to release, attracted widespread attention and acclaim. Today, some eight volumes, two novels, and multiple boxed sets of plastic miniatures later, Dmitry and Kate Burmak have produced more than 85 illustrations, guided by the concepts developed by Frostgrave creator Joseph A. McCullough. Together, these three have breathed life into the Frozen City, depicting the wizards, warriors, and creatures that call it home. With behind-the-scenes content, including concepts, sketches, work-in-progress shots, and commentary from the creators, this lavish volume features all the artwork produced for Frostgrave – from the rulebook that started it all to the Perilous Dark supplement.
The Eye: Volume 2, The Visual Process is a compendium of papers that describes the physiology of the eye, particularly the visual functions, the photobiology of the visual process, and the visual pathway. One paper describes the light stimuli used in physiological experiments concerning vision in terms of their spectral energy distribution, particularly the amounts of light absorbed by the photosensitive substances contained in the retinal receptors. Another paper explains the mosaic-like arrangement of the receptors and the variations of this mosaic in the different regions of the retina, including the Purkinje phenomenon which can cause errors in visual measurements. One paper examines the directional properties of the rods at long wavelengths and the theory of the Stiles-Crawford effect. Other papers investigate the limits of the visible spectrum, the scotopic luminous efficiency, theories of dark-adaptation, as well as the minimum retinal illumination, the minimum flux of energy, and the minimum amount necessary for vision. One paper notes that whereas one rod can be stimulated by one quantum (a discrete process involving one pigment molecule), it is not sufficient to make a human subject see a light stimulus. The compendium is invaluable for researchers and investigators involved in physiology, psychology, ophthalmology, and in all branches of ocular physiology.
Lavishly illustrated with hundreds of full-color images, this family-oriented art resource introduces children to more than 50 great artists and their work, with corresponding activities and explorations that inspire artistic development, focused looking, and creative writing. This treasure trove of artwork from the National Gallery of Art includes, among others, works by Raphael, Rembrandt, Georgia O’Keeffe, Henri Matisse, Chuck Close, Jacob Lawrence, Pablo Picasso, and Alexander Calder, representing a wide range of artistic styles and techniques. Written by museum educators with decades of hands-on experience in both art-making activities and making art relatable to children, the activities include sculpting a clay figure inspired by Edgar Degas; drawing an object from touch alone, inspired by Joan Miro’s experience as an art student; painting a double-sided portrait with one side reflecting physical traits and the other side personality traits, inspired by Leonardo da Vinci’s Ginevra de' Benci; and creating a story based on a Mary Cassatt painting. Educators, homeschoolers, and families alike will find their creativity sparked by this art extravaganza.
