Marc Wittmann Books

Altered States of Consciousness

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What can altered states of consciousness—the dissolution of feelings of time and self—tell us about the mystery of consciousness? A groundbreaking study of out-of-body-experiences, drug intoxicat...

Felt Time

By Erik Butler, Marc Wittmann

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Felt Time

By Erik Butler, Marc Wittmann

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Felt Time

By Erik Butler, Marc Wittmann

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Altered States of Consciousness

By Philippa Hurd, Marc Wittmann

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What altered states of consciousness—the dissolution of feelings of time and self—can tell us about the mystery of consciousness.During extraordinary moments of consciousness—shock, meditative stat...

L e S M o N d e S 2

By Marc Wittmann

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Top Secret Revelations d un Univers Etonnant 1ere Partie

By Marc Wittmann

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Top Secret Revelations d un Univers Etonnant 2eme Partie B

By Marc Wittmann

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Gefuhlte Zeit

By Marc Wittmann

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29th Annual General Meeting of the European Brain and Behaviour Society

By Alexander Steffen, Nicole Von Steinbuchel, Marc Wittmann

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.