Marc Wittmann is Research Fellow at the Institute for Frontier Areas of Psychology and Mental Health in Freiburg, Germany, and the author of Felt Time: The Psychology of How We Perceive Time (MIT Press).

To make a book either about altered states of consciousness or about time accessible to nonexperts is, by itself, a great challenge. In Altered States of Consciousness: Experiences Out of Time and Self, author Marc Wittmann takes one step further and combines these two topics to discuss how they are related... his book is likely to be enjoyed both by readers who are novices in these areas and by readers who are already familiar with one of these topics.—Wired