Mark J. Plotkin Books

Kamanya believes in the shaman's wisdom about the healing properties of plants found in the Amazon rain forest and hopes one day to be a healer for his people.

Medicine Quest: In Search of Nature's Healing Secrets

By Mark J. Plotkin

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"Plotkin highlights the ironic marriage of natural products, indigenous wisdom, and biotechnology and details discoveries that are already producing stunning leads in the laboratory: painkillers fr...

In de leer bij de sjamanen

By Plotkin Mark J.

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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.