Sam Challis Books

Deciphering Ancient Minds: The Mystery Of San Bushmen Rock Art

By J. David Lewis-Williams, David Lewis Williams, Sam Challis

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How did ancient peoples—those living before written records—think? Were their thinking patterns fundamentally different from ours today? Researchers over the years have certainly believed so. Alo...

Powerful Pictures

By Joakim Goldhahn, Jamie Hampson, Sam Challis, Sam Challis (Editor), Joakim Goldhahn (Editor), Jamie Hampson (Editor)

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Focusing on stunning paintings and engravings from around the world, Powerful Pictures interrogates the driving forces behind global rock art research. Many of the rock art motifs featured in the 1...

Powerful Pictures

By Joakim Goldhahn, Jamie Hampson, Sam Challis, Sam Challis (Editor), Joakim Goldhahn (Editor), Jamie Hampson (Editor)

Average: 0.00, 0 Ratings

Deciphering Ancient Minds: The Mystery Of San Bushmen Rock Art

By J. David Lewis-Williams, David Lewis Williams, Sam Challis

Average: 0.00, 0 Ratings

How did prehistoric peoples those living before written records think? Were their modes of thought fundamentally different from ours today? Researchers over the years have certainly believed so. Al...

Deciphering Ancient Minds: The Mystery Of San Bushmen Rock Art

By J. David Lewis-Williams, David Lewis Williams, Sam Challis

Average: 0.00, 0 Ratings

Deciphering Ancient Minds

By J. David Lewis-Williams, David Lewis Williams, Sam Challis

Average: 0.00, 0 Ratings

How Did Prehistoric Peoples Those Living Before Written Records Think? Were Their Modes Of Thought Fundamentally Different From Ours Today? Researchers Over The Years Have Certainly Believed So. Al...

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.