Christian Vogt

Christian Vogt has been working with photography for nearly fifty years. His ongoing dialogue with the medium has repeatedly given rise to a new image language, often putting him ahead of his time. Vogt's work can be regarded as an exploration of vision: for him, an image is always a projection screen, as each observer reacts differently to what is shown. Christian Vogt: The Longer I Look is the first monograph covering the entirety of his oeuvre. Some 350 images offer a comprehensive overview of Vogt's conceptual work, his philosophical inquiries, and his capacity to visualise the 'things behind things'. The book also features a brief introductory essay by Vogt himself and a conversation between the artist and curator Martin Gasser.

Over the now more than forty-five years that he has been studying and exploring photography, Christian Vogt has discovered new visual vocabularies again and again. In his new work, consisting almost exclusively of contrasting pairs of pictures, he continues to question the relationship between visible reality and its photographic reproduction, between image and text, between seeing and knowing. Using a pinhole camera and modern technology without the intervention of digital manipulation, he deals with the "necessary nonsense," with unifying opposites, with actual and supposed paradoxes, defining some things through exploration and allowing others to remain undefined.

Today, the internet and computer networking are essential parts of business, learning, and personal communications and entertainment. Virtually all messages or transactions sent over the internet are carried using internet infrastructure- based on advanced internet protocols. Advanced internet protocols ensure that both public and private networks operate with maximum performance, security, and flexibility. This book is intended to provide a comprehensive technical overview and survey of advanced internet protocols, first providing a solid introduction and going on to discuss internetworking technologies, architectures and protocols. The book also shows application of the concepts in next generation networks and discusses protection and restoration, as well as various tunnelling protocols and applications. The book ends with a thorough discussion of emerging topics.