Herbert V. Guenther Books

Westerners wanting to know about tantra—particularly the Buddhist tantra of Tibet—often find only speculation and fancy. Tibet has been shrouded in mystery, and "tantra" has been called...

The Life and Teaching of Naropa

By Herbert V. Guenther

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In the history of Tibetan Buddhism, the eleventh-century Indian mystic Nâropa occupies an unusual position, for his life and teachings mark both the end of a long tradition and the beginning...

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.