While historical texts have long been subject to critical analysis, the formal and historical problems posed by graphic representations of time have largely been ignored. This is no small matter: graphic representation is among our most important tools for organizing information.* Yet, little has been written about historical charts and diagrams. And, for all of the excellent work that has been recently published on the history and theory of cartography, we have few examples of work in the area Eviatar Zerubavel has called time maps. This book is an attempt to address that gap.”
via Cartographies of Time: A Visual History of the Timeline | Brain Pickings.